Creative Education
2012. Vol.3, Special Issue, 784-795
Published Online October 2012 in SciRes (
Copyright © 2012 SciRes.
Exploring Collaborative Training with Educational Computer
Assisted Simulations in Health Care Education: An Empirical
Ecology of Resources Study
Lars O. Häll
Department of Education, Umeå University, Umeå, Sweden
Received August 29th, 2012; revised September 27th, 2012; accepted October 9th, 2012
This study explores collaborative training with educational computer assisted simulations (ECAS) in
health care education. The use of simulation technology is increasing in health care education (Issenberg
et al., 2005; Bradley, 2006), and research is addressing the techniques of its application. Calls have been
made for informing the field with existing and future educational research (e.g. Issenberg et al., 2011).
This study investigates and examines collaboration as a technique for structuring simulation training. Part
of a larger research and development project (Häll et al., 2011; Häll & Söderström, 2012), this paper pri-
marily utilizes qualitative observation analysis of dentistry students learning radiology to investigate the
challenges that screen-based simulation technology poses for collaborative learning. Grounded in
Luckin’s ecology of resources framework (Luckin, 2010) and informed by computer-supported collabora-
tive learning (CSCL) research, the study identifies some disadvantages of free collaboration that need to
be dealt with for collaboration to be a beneficial technique for ECAS in health care education. The dis-
cussion focuses on the use of scripts (Weinberger et al., 2009) to filter the interactions between the learner
and the more able partner, supporting the collaborative-learning activity and enhancing learning with
ECAS in health care education.
Keywords: Collaborative Learning; Collaborative Scripts; Computer Simulation; Design; Dentistry
Education; Ecology of Resources
Exploring Collaborative Training with
Educational Computer Assisted
Simulations in Health Care Education
Health care education faces both challenges particular to it
and common to higher education. Although apprenticeship
learning through clinical practice has been common in physi-
cian training, this teaching method poses a seemingly innate
contradiction with patient safety. Resistance to this teaching
method stems from concern for patients exposed to it during the
course of their treatment. Simulations offer a potential means of
overcoming this contradiction, of “bridging practices” of edu-
cation and profession (Rystedt, 2002). As students’ opportuni-
ties for clinical training decrease because of altered patient
expectations, the Bologna Accord, changes in practitioner mo-
bility, and new forms of governance and training, it has been
suggested that health care education is, and should be, under-
going a paradigm shift to an educational model focused more
on documented expertise than clinical practice (Aggarwal &
Darzi, 2006; Debas et al., 2005; Luengo et al., 2009, Tanner,
Simulation technology, in and of itself, is not sufficient to
support learning; the appropriate techniques for its application
are also needed (Gaba, 2004; Issenberg et al., 2011). Recently,
calls have been made to widen the scope of research into the
educational applications of simulation technology by informing
it about existing and future educational theories, concepts, and
research (Issenberg et al., 2011). Research should be directed
not only at simulation technology in general (Issenberg et al.,
2005) but at the different types of simulations technology in
specific contexts, because simulations and training come in
various forms and shapes (Gaba, 2004), and trying to generalize
about, for example, computer simulations and full-scale
trauma-team simulations together is not helpful for researchers
or practitioners, especially in a field with explicitly interven-
tionist ambitions. Similar arguments have been put forth by
researchers working with other forms of technology-enhanced
learning (Dillenbourg et al., 1996). This study, therefore, is
limited to educational computer assisted simulations (ECAS)
and attempts to explore peer collaboration as a technique to
apply ECAS in health care education.
Since the 1970s, educational research has directed much in-
terest (Dillenbourg et al., 1996; Johnson & Johnson, 1999)
toward how individual development is related to interactions in
social and cultural contexts (Vygotsky, 1978; Wertsch, 1998;
Luckin, 2010). Extending Vygotsky’s concept of the zone of
proximal development, Luckin (2010) would argue that re-
searching techniques for ECAS application should be about
“re-designing learning contexts” of which ECAS are a part.
This research needs to explore and analyze the learner’s ecol-
ogy of resources and interactions with these resources in order
to identify potential adjustments that could support negotiations
between the learner and the more able partner and, thereby,
help the more able partner identify the learner’s needs and draw
attention to appropriate resources, or create a zone of proximal
adjustment (p. 28). This support can help the learner to act on a
more advanced level and, by appropriating these scaffolded
interactions, develop further than possible through individual
efforts. Central categories of resources (or available assistance)
with which learners interact with are tools (e.g., a simulator),
people (e.g., peers), skills and knowledge (e.g., dental imaging
and related subjects), and environment (e.g., social and physical
locale). These resources are interrelated, and learners’ interac-
tion with them is filtered, for example, by the organization and
administration of ECAS training sessions (for a general model,
see Luckin, 2010: p. 94).
One of the ‘social resources for individual development’ that
has been investigated within educational research is cooperative
and collaborative learning in groups (Dillenbourg et al., 1996;
Johnson & Johnson, 1999). In Luckin’s framework, group peers
can be categorized as a people resource that serves the role of
the more able partners. Collaborative learning research has
yielded strong empirical support for the positive effects of peer
group learning in beneficial conditions (Johnson & Johnson,
1999). Amid the proliferation of personal computers and com-
puter-supported and -based instruction since the 1990s, the field
of computer-supported collaborative learning (CSCL) devel-
oped to meet the challenge of exploiting computers’ potential to
support collaborative learning. CSCL focused on the mediating
role of cultural artifacts (Wertsch, 1999), or tools in Luckin’s
terms, and a number of means to support different aspects of
collaborative learning have been conceptualized and developed
(Dillenbourg et al., 2009). As CSCL matured, developmental
processes have become a focus of investigation (Dillenbourg et
al., 2009), primarily because of the influence of by socio-cog-
nitive and sociocultural theory (Dillenbourg et al., 1996) and
ideas about scaffolding (Wood et al., 1976).
From a Luckinian perspective, group peers can be regarded
as potential more able partners, helping the learner to perform
and learn on a higher level. In order to support the more able
partner’s ability to help the individual learner develop, CSCL
researchers and designers drawn upon empirical research to try
to foster an intersubjective construction of meaning (Stahl,
2011) or a “mutual engagement of participants in a coordinated
effort to solve the problem together” (Roschelle & Teasley,
1995, p. 70). Such fostering is achieved by redesigning learner
contexts and is often related to the organizational and adminis-
trative filters in Luckin’s model. Early small-group learning
research’s main contribution was to urge seeking cooperative,
rather than competitive, interactions (Johnson & Johnson, 1989).
The value of cooperation stems from its encouragement of cer-
tain interactional patterns, such as giving elaborated explana-
tions or receiving these explanations and taking advantage of
the opportunity to grasp and apply them (Webb, 1989). In addi-
tion, negotiation supports learning because of the social process
of mutual adjustment of positions appropriated by individuals
(Dillenbourg et al., 1996). In fact, individuals need to make
their reasoning and strategies explicit in order to establish a
joint strategy and to identify conflicts to be resolved by a
co-constructed solution (Dillenbourg et al., 1996; Rogoff, 1990,
1991). Simulations are mediational resources that can help form
a shared referent (Roschelle & Teasley, 1995) among students
but, in and of themselves, are not enough. Patterns such as
elaborated explanations are more likely to occur amid some
conditions, such as in certain group compositions (Webb, 1989),
or when groups are explicitly encouraged to do so, for example,
by scaffolding scripts (Weinberger et al., 2005, 2009). Groups
might need support to avoid various silent and passive tenden-
cies (Mulryan, 1992) and to achieve a sense of individual ac-
countability for the performance of the group (Slavin, 1983,
2010). Previous research has noted that the way the system
provides feedback can hinder, as well as support, beneficial
interactions (Fraisse, 1987, referred to in Dillenbourg et al.,
Luckin’s framework is not specifically concerned with the
traditional CSCL questions; her focus is wider and includes
non-peer, non-collaborative activities. The overlap between
them, however, is harmonious, and CSCL research is a useful
resource for ecology researchers focusing on peer interactions.
For Luckin (2010), “it is this relationship between learner and
More Able Partners that needs to be the focus of scaffolding
attention.” because it reveals the learner’s “current understand-
ing and learning needs” and enables the more able partner to
“identify and possibly introduce a variety of types of assistance
from available resources” (p. 28). CSCL contributes by pin-
pointing important factors in cases when group peers enact the
role of the more able partner.
Peer collaboration seems to have been paid little attention in
the health care simulation field. With the exceptions of the
studies by De Leng et al. (2009), Rystedt and Lindwall (2004),
and Hmelo-Silver (2003), it cannot be traced in any significant
way in the widely cited review by Issenberg et al. (2005) or in
the current research agenda (Issenberg et al., 2011). Most re-
search on factors influencing learning with ECAS in higher
education, instead, consider 1) individual participants’ charac-
teristics, such as prior clinical experience (Brown et al., 2010;
Hassan et al., 2006; Liu et al., 2008) and metacognitive abilities
(Prins et al., 2006); 2) simulation characteristics, such as re-
peatability (Brunner et al., 2004; Smith et al,. 2001), progres-
sion (Aggarwal et al., 2006), and participation requirements
(Kössi & Loustarinen, 2009); 3) simulation integration, such as
the chronological relation to lectures (See et al., 2010), work
shifts (Naughton et al., 2011), and video-based instructions
(Holzinger et al., 2009); and d) support during training, such as
the type and quality of feedback (Van Sickle et al., 2007), pro-
vision of contextualized questions (Hmelo & Day, 1999), and
the teacher-student ratio (Dubrowski & MacRae, 2006).
Successfully delivering support to health care students train-
ing collaboratively within their ECAS ecology of resources
(Luckin, 2010; Häll & Söderström, 2012) requires more know-
ledge about what kind of support is needed in this type of ecol-
ogy. The learner in this paper is a dental student learning about
dental radiology and the principle of motion parallax (the pri-
mary skills) supported by a peer collaboration group (the pri-
mary more able partner) and the radiology simulator (the pri-
mary Tool; Nilsson, 2007). During one-hour sessions, they
work in free (unscripted) collaboration with specific tasks
which they chose themselves from a pool offered by the simu-
lator (central resource filters). Previous analysis of this ecology
of resources has been performed within the Learning Radiology
in Simulated Environments project (Nilsson et al., 2006; Nils-
son, 2007; Söderström et al., 2008; Häll et al., 2009; Söder-
ström & Häll, 2010; Häll & Söderström, 2012; Häll et al., 2011;
Söderström et al., 2012). Results have indicated, among other
things, challenges in the relationship between learner and the
more able partners (a Type 2 issue in ecology of resources
terms; Luckin, 2010: p. 131) manifested, for example, as sig-
nificant differences in how much collaborative verbal space
respective learners possess during collaboration, with some
students standing out as more silent. From the collaborative
Copyright © 2012 SciRes. 785
learning perspective sketched out here, these differences may
hinder the negotiation between learner and more able partner
sought by both Luckin and CSLC researchers. Significant dif-
ferences, however, were also found in the proficiency devel-
opment of these silent students (Häll et al., 2011), and this
study seeks the causes in the groups’ collaborative problem-
solving processes. Investigating interactive patterns of more
and less successful groups is common in CSCL and allows
identification of opportunities to adjust interactions with scaf-
folding filters.
This article contributes to the growing research on learning
through applications of health care simulations by exploring
collaborative training with ECAS from ecology of resources
perspective and with a particular focus on the influence of the
interaction between silent learners and their potential more able
partners in relation on learning outcomes. The overall question
this study asked is: What differentiates, and unites, the interac-
tive behavior of silent learners and potential more able partners
in successful and unsuccessful free collaborative training in an
ECAS ecology of resources? What are the implications for
structuring an ECAS training with peer collaboration? In other
words, what opportunities for adjustment emerge, and how can
they be seized? Three empirical questions follow from this
research aim: 1) How does a more successful triad collabora-
tively solve a given task in the screen-based radiology simula-
tor? 2) How does a less successful triad collaboratively solve
the same task? 3) What unites and separates the interactive
behaviors of these groups in regards to challenges facing the
negotiation between silent learner and more able partner?
As its empirical foundation, this study uses transcribed ob-
servations of the groups’ simulation training sessions, which
permits following the problem-solving process, expressed in
the students’ verbal activity, as it progresses. Such detail takes
up extensive space, so snapshots of the respective groups’
process while engaged in the same task, exploring the same
anatomical area, will be taken. This method permits identifica-
tion of similar and distinguishing traits for the groups, which
have similar pre-training test scores. Based on this analysis, this
paper will discuss the need for adjustments in the relationship
between learners and more able partners and collaborative
scripts (Dillenbourg & Hong, 2008; Weinberger, 2010) as a
potential resource for such adjustments in collaborative learn-
ing with screen-based ECAS in health care education. This
study can be regarded as a “fine-grained analysis of the details
of a particular element and interaction” (Luckin, 2010: p. 126),
related particularly to the second of the three steps in the ecol-
ogy of resources redesign framework (p. 118); this paper does
not report a full redesign cycle. The Luckinian ecology of re-
sources perspective has yet to be represented within research on
health care simulations, but with its focus on redesigning simu-
lation contexts according to research, it fits very well within the
trajectory of the field.
The empirical contribution of this paper is a comparison of
two groups—triads—of dentistry students working together
during an hour of simulation training on the topic of radiology.
Participants were recruited from a population of undergraduate
students in the dentistry program at a Swedish university taking
a course in oral and maxillofacial radiology. Although this pa-
per reports on a subset of 3 + 3 students, a total of 36 students
participated in the original study. Volunteers participated in a
pre-test, training, and a post-test. The overall design of the
study is presented in Table 1.
Radiology Simulator and Trai ning Sessions
The radiology simulator used in this study is basically a
standard PC equipped with simulation software, as illustrated in
Figure 1. It has two monitors, one displaying a three-dimen-
sional (3-D) anatomical model, X-ray tube, and film, and the
other displaying two-dimensional (2-D) X-ray images. The
control peripherals include a standard keyboard and mouse and
a special pen-like mouse device and roller-ball mouse. Using
the simulator, students can perform real-time radiographic ex-
aminations of a patient’s jaw, which is one of the examinations
studied and practiced in the students’ courses. The simulator
allows the user to position the 3-D model of the patient, the
X-ray tube, and the film. X-ray images can then be exposed at
will by students and immediately displayed by the simulator as
geometrically correct radiographs rendered from the positions
of the models. Other possible exercises that can be done on the
simulator include replication of standard and incorrect views.
Change in the 2-D X-ray image can be seen in real time as the
model is manipulated (a technique called fluoroscopy) and
experimented on in an improvised manner.
During the one-hour long training sessions, the groups
worked collaboratively with the simulator, supervised by a
teacher primarily acting as technical support. This set-up can be
described as free collaboration with students themselves decid-
ing how to manage things.
Proficiency Tests
The students’ proficiency in interpreting radiographs was
evaluated before and after the exercises. Two dental scientists
Table 1.
Study design.
Input Process Output
Variable Pre-training
Evaluation Proficiency testObservation Proficiency test
Figure 1.
Illustration of a dentistry student working with a jaw model on the
radiological VR simulator.
Copyright © 2012 SciRes.
teaching at the dentistry program developed the proficiency test
that measured subject proficiency using the criteria in this
course at the dentistry program. The test consisted of three
subtests: a principle test, a projection test, and a radiography
test; each part was graded from 0 to 8 for a total of 24 possible
points. The principle subtest assessed participants’ understand-
ing of the principles of motion parallax. The projection subtest
evaluated participants’ ability to apply the principles of motion
parallax and, based on basic sketches, requires basic under-
standing of anatomy. The radiography subtest assessed partici-
pants’ ability to locate object details in authentic radiographic
images utilizing motion parallax. Participants were asked to
report the relative depth of specified object details in pairs of
radiographs. The proficiency analyses in this study are based on
the total scores from all three subtests. Previously, these profi-
ciency tests have been used to compare students training with
ECAS and conventional alternatives (Häll et al., 2011).
Observation of Simulation Training Using Video
To enable analysis and comparison of the collaborative
training process as expressed in peer interaction, the simulation
sessions were recorded using a DV camera, a common method
among researchers in health care education (Heath et al., 2010;
Koschmann et al., 2011; Rystedt & Lindwall, 2004). The cam-
era was placed so that the upper, facial half of students was
visible. Automated computer logs showing what activities stu-
dents were doing when were used to support the analysis, be-
cause the screens were hidden from view. The log records in-
clude type of task; anatomical area; timestamps for start, feed-
back, and finish; and scores on the initial and final solutions.
Analysis of the video-recorded training process occurred in two
phases. Initially, a quantitative analysis divided the recordings
into time segments of 1 minute, and in each segment, it was
noted who was the dominant speaker and the dominant operator
of the simulator. Such data is presented in Figure 2. One re-
searcher performed all coding of the training sessions and, in
order to produce a measure of the coding stability (Krippen-
dorff, 2004), re-coded one session and compared the results for
each category with the original analysis. The percent agreement
between original coding and re-coding was and 98% for opera-
tion and verbal space, respectively.
(a) (b)
Figure 2.
Illustration of how often in percentage of sixty 1-minute time segments
that each group member dominated the verbal space. (a) Mary, Ava, Eli;
(b) Marc, Alex, Hera.
Groups were selected for further analysis based on data about
equality in the distribution of control over verbal space and the
simulator and for proficiency development. These groups are
described in the next section. The recordings of these selected
groups were transcribed. Transcription was inspired by Heath et
al. (2010) but kept basic and, in this paper, limited to verbal
actions and interactions with the simulator that started or ended
phases in the problem-solving process. Although interaction
analysts champion the idea that nonverbal interaction is equally
important as verbal (Jordan & Henderson, 1995), for the sake of
this particular analysis, nonverbal interaction has been ex-
The chosen recordings were viewed repeatedly and loosely
transcribed in full, which allowed for the groups’ typical inter-
action patterns to be identified and for their differences to
emerge. Continued viewing and reading of the transcripts and
referencing log data about task, time on task, and solution suc-
cessfulness led to the choice of one snapshot from each group.
This snapshot is taken from an instance in which the two
groups engaged in the same type of analysis (the same simula-
tor task) of the same anatomical area with equally unsuccessful
results. While a snapshot is always just a snapshot, these sce-
narios were chosen because they illustrate interactive patterns,
challenges, and differences that recurred throughout the training
sessions. The snapshots were transcribed in more detail.
The Groups—A Closer Look
The two groups selected for analysis in this paper represent
the most successful and the least successful groups in the
original study, as defined by group proficiency development
from pre-test to post-test. The composition of these groups is
similar in a few relevant aspects. They have very similar
pre-test scores, differing by only 3 points on a 72-point scale,
and had a very similar distribution of scores between group
members (see Table 2). Additionally, in each group, the mem-
bers share the distribution of collaborative space quite un-
equally, with one participant less verbal (i.e., relatively silent).
Figure 2 illustrates how often each group member dominates
the verbal activity during the one-hour training session, based
on a quantitative count of coded 1-minute time-segments. It is
thus a group-relative definition and not based on absolute
counts of contributions. All names are fictitious.
The silent participants followed in this text are Mary and
Marc. They spend roughly the same amount of time operating
the simulator and had comparable scores on the pre-training
proficiency test, as illustrated in Table 2. They differ signifi-
cantly, however, on post-test scores; Mary develops from 8 to
15, while Marc stays at 7.
Table 2.
Proficiency test scores and development of group members.
Group MemberPre-test
score Development
Mary’s group Mary 8 15 7
Ava 14 16 2
Eli 20 20 0
Marc’s group Marc 7 7 0
Alex 18 15 3
Hera 14 15 1
Copyright © 2012 SciRes. 787
In peer collaboration studies, one hypothesis about the causes
of differences in relative space holds that individual differences
in content competence are important (Mulryan, 1992; Cohen,
1994). Indeed, the pre-test scores for these study groups show
that the least active participants (Mary and Marc) have signifi-
cantly lower scores than their peers and that the most active
participants (Eli and Alex) are at top of their group. Another
hypothesis is that social relationships are important (Häll et al.,
2011). Data from a post-training survey (not included in this
paper) that the more active participants have stronger social
relationships and socialize privately with each other but not
with the silent student. Other factors, such as self-efficacy and
social status, have been suggested to have an impact (Webb,
1992; Fior, 2008). Such factors may have contributed to creat-
ing the differences in verbal activity, but they do not explain the
differences in development between groups.
The Analyze Beam Direction Task
The task in which students engage in the following data is
related to three aspects of radiological examinations; it is stan-
dardized and follows a certain structure. In essence, students
are presented with a task that requires them to interpret radio-
graphic images and to operate the simulator (scene and objects).
When students have positioned the simulation objects in what
they deem to be the correct way and requested feedback from
the simulator (by pressing a button labeled “next”), they are
given numerical information about the distance between their
own model-position and the correct model-position. Based on
this feedback, groups are given the opportunity to re-position
the model before submitting their final solution. In addition,
they receive numerical feedback about the actual position of
their final solution relative to the correct position. A correct/
good-enough solution elicits a beeping sound from the simula-
tor, along with the numerical and visual feedback. An insuffi-
cient solution elicits only visual and numerical feedback.
Simulator log files show that students follow these steps in
almost every situation (although sometimes they switch tasks
before finishing or restart the simulator). As well, the tran-
scripts make it clear that these steps are the major topics of
discussion during the training session.
This section details the collaborative problem-solving proc-
ess for two groups working on the same task as manifested in
transcriptions of their verbal activity. The transcripts illustrate
each group’s first attempt at the analyze beam direction task of
a particular anatomical area. Both groups previously had con-
ducted this type of analysis on other areas of the body. Both
groups first propose solutions that equally incorrect according
to the simulator’s criteria and other tasks that they solve. Their
solution-producing processes differ, however, as do their re-
sponses to feedback and, as previously mentioned, their profi-
ciency development. While both groups’ problem-solving
processes vary somewhat over the course of the training session,
these transcripts capture some of the differences between the
groups that are recurring issues in the ecology studied in the
Learning Radiology in Simulated Environments project. As
such, these transcripts both illustrate what separates the prob-
lem-solving process of more successful and less successful
collaborative behavior in this ecology and indicate opportuni-
ties to support both type of groups. The problem-solving proc-
ess of Mary’s group is presented first because it is easier to
Transcript 1 — M ary ’s Gro up S ol vi ng an Anal yze
Beam Direction Task
Step 1. Picking a task. The first excerpt shows Mary’s
group picking and starting a new task. The process starts with
Ava asking loudly if it is possible to change dental area without
changing the type of task (1). She states the question relatively
loudly, inviting the nearby teacher to answer. The teacher ex-
plains that it is not possible to do so (2) and later supports
Ava’s task-starting procedure (5). Eli suggests a particular area
of investigation (3), to which Ava agrees and asks for confir-
mation (6), which she receives from Eli (7).
Excerpt 1.
Mary’s group picking a task.
1 Ava
Can’t you change area without changing task? (6)
[To change…]
2 Teacher[No you have to go back] and push “8” to change
area, yeah.
3 Eli Canine. (3) Lower canine.
4 Mary <Inaudible whisper>
5 TeacherThen you choose which task to do, yeah.
6 Ava Should we try this one?
7 Eli Yes.
Step 2. Taking the first radiograph. Next, Eli, the operator,
begins the process of maneuvering the 3-D models into a fa-
vorable position for taking an initial photograph of the tooth
and states that he has found the position (8). Ava suggests that
he should pull the camera back a bit, effectively zooming out
and capturing a wider area (9). Mary agrees with Ava’s sugges-
tion (10), joining Mary in a laugh at Eli’s operations (11). Eli
suggests a new position, starting to state that it is very precise
(12), and is rewarded with laughter in which he joins (13). Ava
asks Eli if this is how he usually takes his photos (14) to which
he agrees that it does seem like it (16). Ava finishes the first
part of the exercise by clicking to produce the photograph,
which also generates a random second photograph used to con-
trast the first (17).
Excerpt 2.
Mary’s group taking the initial radiograph.
8 Eli Here it is.
9 Ava Pull back a bit.
10 Mary Yeah.
11 Ava Mary ((Laughing)).
12 Eli There. That looks [exactly…]
13 Ava Mary Eli [((Laughing))]
14 Ava Is this how you do your shots?
15 Mary ((Inaudible whisper)).
16 Eli Yes. (3). Looks like it.
17 Ava <Clicks to end step>
Copyright © 2012 SciRes.
Step 3. Comparing radiographs and finding a solution.
The next excerpt begins with Ava delivering a one-word inter-
pretation of the differences between the self-made radiograph
and the one generated by the simulator (18). She gets support
from Mary (19), and Eli requests a clarification of the nature of
something shown (20). Mary starts to suggest a maneuver but is
halted (21). Eli revises the initial interpretation and starts to
explain why (23) but is halted by Mary delivering counter-
evidence (23). Ava contributes more evidence (24), initially
corrected but then supported by Mary (25). Eli cautiously sup-
ports this latest evidence but quickly starts to question it, sug-
gesting how to re-position the camera (26).
Ava tries to deliver more counter-evidence but (27), but Eli
interrupts her, intent on trying out his thought. He explains his
reasoning (28) and then concurs with the initial conclusion put
forth by his peers (29). Ava suggests that one of the radiographs
is not what it should be (31) and gets confirmation from Ava
(23). Eli argues for a maneuver (33, 35) and gets some support
from Ava (34, 36). Mary signals when she thinks they have
reached the correct position (37), as does Eli (38). Ava asks for
more time for a final check (39) before she clicks to finish the
task and receive feedback (40).
Excerpt 3.
Mary’s group comparing radiographs and finding a solution.
18 Ava Distal.
19 Mary Yeah, it’s distal.
20 Eli What’s that [white stuff we see?]
21 Mary [Maybe a bit...]
22 Eli No, it is more mesial. Isn’t the one on the right more …?
23 Mary No, no, but this is the premolar here.
24 Ava
And you get six as well. [And there is no overlap between
them, so it is more ortoradial to five and four, four and five.]
25 Mary [Three. Yeah it has to be.] (4) That’s right…
26 Eli
Yeah. (3) Exactly. (4) But wait. (2) You take it more. (2) You
take THAT one more frontal.
27 Ava No. (1) So you [have]…
28 Eli
[Yes], what happens then? (1) No, you have to do it more
from the front exactly. When the image is on the exact spot.
I’m thinking a bit like you’re moving the image as well, but
you’re not really.
29 Eli There. (1) It is taken more distal.
30 Ava Yes. (1) Then it’s ortoradial to four then.
31 Mary Feels this not a canine shot? It [must] be a premolar shot.
32 Ava [No.]
33 Eli
Especially, it went it went right in the beam direction, so you
see in the beam direction [above there].
34 Ava [Mm.] Mm.
35 Eli Then we’ll just take it towards us. (5)
36 Ava Yeah. Mm.
37 Mary There.
38 Eli There.
39 Ava Wait a bit. I’ll just see…(7)
40 Ava ((Click to end step))
Step 4. Dealing with feedback and correcting the solution.
The next excerpt deals with feedback on an incorrect solution.
The excerpt begins with the students expressing their surprise
nearly in unison (40 - 42). Eli immediately starts to interpret
how the simulator’s solution differs from theirs, but he trails off
(44). Mary states her interpretation (44). Eli concludes that their
own solution was “crap” (45) and then states an interpretation
of the differences between the two radiographs (46), receiving
support from Ava (47). Mary begins to support Eli (48), but he
interrupts, adding that this is something for which they should
have accounted (49), and again receives support from Ava (50).
Mary restates her previous interpretation with a slight modifi-
cation (51), but Eli changes his mind, interrupts Mary, and
states an interpretation opposed to Mary’s (52). Mary restates
her interpretation and points to a specific element of the radio-
graphs as support (53), receiving support from Ava (54) and
finally also from Eli (55). Mary begins to present additional
evidence (56), but Ava interrupts, insisting that Eli should cor-
rect the solution so that they can receive more feedback on how
the camera should have been positioned (57). Mary whispers
almost inaudibly to herself (58) as the model is moved into
position and new feedback presented (59). Ava acknowledges
the solution (60), and Eli concludes that their previous inter-
pretation was correct (61). Ava states that this interpretation is
in accordance with normal practice (62) and receives support
from Eli (63). The task is finished, and the students move on to
the next challenge.
Excerpt 4.
Mary’s group dealing with feedback and correcting the solution.
41Eli [What!?]
43Eli We took it too…
44MaryMore from abo-, more above they took it.
45Eli Well, that’s crap.
46Eli Of course, they’ve become shorter. The roots have become
much shorter.
48Mary[Yeah that…]
49Eli [One should] have spotted that
51MarySo they took it quite a bit [from above].
52Eli [Or no they] haven’t become shorter at all.
53MaryThey [have become rather] short in comparison to this image.
55Eli Yeah. I suppose they have.
56Mary[This one sure has backed up].
57Ava [But try, try to put it] so you see where it should have been.
(2) Put the white on the blue there.
58MaryThere <inaudible>
59 <Simulator signals that a correct solution has been reached>
61Eli Way up, they went.
62AvaYeah, that’s how they take them, of course.
63Eli Yep.
Copyright © 2012 SciRes. 789
Summary and analysis of the problem-solving process of
Mary’s group. The task cycle in Mary’s group moves through
four steps, or topics, of interaction: 1) picking a task, 2) taking
the first radiograph, 3) comparing radiographs and finding a
solution, and 4) dealing with feedback and correcting the solu-
tion. These steps are connected to significant events in the in-
teraction with the simulator, and the last two steps are more
directly related to problem-solving.
From the beginning, it is clear that the more able partners
(Ava and Eli) are taking charge of the activity. By externalizing
questions (“Can’t you change …”) and directives (“Canine.
Lower canine”), they enable a partially shared activity. How-
ever, their reasons for and goals in picking a particular task or
area of investigation are not negotiated or even shared, and
neither is Mary (the silent listener) involved. The production of
the first radiograph is done with a little mutual regulation (“Pull
it back a little”) of the operation of simulator through playful
orders. While this radiograph can be taken from different posi-
tions, it would be helpful later on for the students to understand
and remember how it was taken. Again, the more able partners
primarily contribute to the verbal exchanges. The comparison
of radiographs begins with a one-word statement of a more able
partner’s interpretation of the primary difference between them
(“Distal”). Although Mary agrees with this interpretation, the
operating more able partner is not convinced, and the following
interactions are motivated by this tension. Eli begins with elic-
iting a clarification of what is shown on screen (“What’s this
white stuff we see?”) and receives such from Mary soon there-
after (“This is the premolar”). As such, the two are opening a
joint construction of a shared understanding of what significant
information is shown in the radiographs. Ava’s contribution
(“There’s no overlap between them, so it must be ...”) demon-
strates how the principles of motion parallax serve as a resource
mediating an interpretation. By focusing on specific elements in
the radiographs and relating these to principles for interpreta-
tion, Ava makes the reasons for her interpretations clear, which
is acknowledged by confirmation from her peers. This interac-
tion is the only example of such an explicit reference. Mary’s
contributions receive little direct response from the more able
partners; they are not accepted as data upon which to act. In
fact, it is quite rare for the operating more able partner to give
any recognition that the others’ input is being taken into con-
sideration, although he externalizes parts of his own reasoning
throughout the production of the initial radiograph.
Faced with negative feedback from the simulator, the group
shares the surprise of their failure. They quickly start to detail
the differences between their solution and the correct one, first
by Mary “(More from above, they took it”). Eli then grounds
this observation in a specific indicator of this difference (“The
roots are much shorter”). After changing their minds and re-
peating the evidence, the group settles for this interpretation,
which turns out to be correct. Although the group seems to
co-create a shared understanding of their failure, they do not
engage in explanation of its causes or how to avoid it in future
This analysis of a successful group during an unsuccessful
task reveals opportunities for teachers and designers to adjust
the silent listener’s ecology of resources by better supporting
the more able partners to help the learner. Such support would,
for example, encourage more direct engagement in the co-con-
struction of interpretations and solutions and make more ex-
plicit the relation between observation, (radiological) principles,
and interpretation.
Transcript 2—M arc’s Gro up Sol ving an Analyze
Beam Direction Task
Step 1. Picking a task. The next transcript illustrates Marc’s
group engaging in the same task in the same anatomical area.
The excerpt starts with Marc trying to decide which area to
investigate and what type of task to do. He almost starts one
type of task but realizes that it is not what he wants, and he
changes his mind two more times (1). Hera starts to laugh (2),
eliciting laughter from Marc, who states that he can’t decide
what to do (3). Still laughing, Hera points out that he will have
to learn them all in the end (4). Marc agrees and decides on the
analyze beam direction (5). Alex provides technical support by
pointing to the button to start such a task (6). Marc finds the
button and begins the task (7).
Excerpt 5.
Marc’s group picking a task.
A canine, I think we’ll take. And fluoroscopy. (3) No,
that, no I want, I’m sorry, I don’t want fluoroscopy. I’ll
take that. No, not that one either.
2Hera ((Laughing)).
3Marc((Laughing)). I’ve got [decision a…That one!]
4Hera [((Laughing)). You have to be able to learn all of them,
Marc, you know.]
5MarcOh yeah. ((Laughing)). Analyze beam direction.
6Alex You’ve got it up there.
7Marc<Click to end step>
Step 2. Taking the first radiograph. Marc restates the task,
indicating that it is what he is trying to achieve (8). He receives
support from Hera (9), repeats her words, and picks this action.
Excerpt 6.
Marc’s group taking the first radiograph.
8 MarcThen, let’s just see, observe direction. (2). Mm.
9 HeraMm, looking good.
10MarcLooking good. (3) Then we’ll take it. <Click to end step>
Step 3. Comparing radiographs and finding a solution.
Marc starts to suggest an interpretation but trails off (11). Alex
fills in by stating his interpretation in two parts (12). Hera sug-
gests a revision of the second part of Alex’s interpretation (13),
which Alex (14) and Marc (15) quickly adopt. Alex and Hera
start whispering softly with each other (16), while Marc whis-
pers inaudibly to himself (17) until he signals that he is satisfied
with the position (18).
Excerpt 7.
Marc’s group comparing radiographs and finding a solution.
11Marc That one’s more. … (5) Hold on …
12Alex It’s more superior (1) and (1) eh [mesial].
13Hera [Distal], it’s distal.
Copyright © 2012 SciRes.
14 Alex Yeah, distal.
15 Marc Yes, distal, yeah. (1) Exactly.
16 Alex Hera [((Whispering to each other)).]
17 Marc [((Talking inaudibly to himself)).]
18 Marc [There. <Click to end step>.]
Step 4. Dealing with feedback and correcting the solution.
Alex and Hera keep whispering to each other (19), and Marc
keeps talking softly to himself (20) until he finds the right spot
and is rewarded by a beep from the simulator (21). This success
elicits an expression of surprise from Marc (22) and apprecia-
tion from Hera, along with a question of whether he managed to
solve the task without needing to correct it (23). Marc lies that
this is the case (24), and Hera teases Alex for not having
achieved this (25). Alex calls out the lie, adding that he did, in
fact, achieve this (26). Everyone laughs (27), and the students
move on to the next task.
Excerpt 8.
Marc’s group dealing with feedback and correcting the solution.
19 Alex Hera [((Whispering to each other))]
20 Marc [Noo, yeah. And there. <Click to end step>]
<Simulator signals that a correct solution has been
22 Marc Oh.
23 Hera Neat! Did you get a beep right away?
24 Marc Mhm.
25 Hera He got you there, sourpuss!
26 Alex
Nuh, he did not! [Marc’s worthless at lying]. (2) I
DID get that!
27 All [((Laughing.))]
Summary and analysis of collaboration in Marc’s group
compared to Mary’s group. The task cycle in Marc’s group
follows the same structure as Mary’s group but in a condensed
form due to the lack of interaction between peers. For this rea-
son, comparisons to Mary’s group are made here and not in a
separate section. As the operator, the usually silent learner is
given charge of picking a new task, and the more able partners
try not to be involved in this decision. This set-up differs from
Mary’s group in which the silent learner was not included in
this process. Although Marc comments on his actions and re-
veals his decision-making process, the criteria for choosing a
task are, as in Mary’s group, not shared. Hera jokingly suggests
that Marc is trying to make it easy on himself (“You have be
able to learn them all, Marc, you know”). The production of an
initial radiograph is done with even less interaction than in
Mary’s group. Marc indicates that he has found the spot (“Mm”)
and gets acknowledgement from Hera (“Mm, looking good”).
When comparing the radiographs, Marc tries to take charge by
delivering an interpretation but trails off. The more able part-
ners quickly state their conclusion (“It is more superior and, eh,
mesial”), and Marc agrees. The more able partners then drop
their focus on the task-solving activity, perhaps considering it
to be completed, and engage in private whispering while Marc
tries to finish the task on his own. There are no attempts at dis-
cussing the relationship between radiographs and anatomical
knowledge, the principles for motion parallax, and their con-
clusion, as Ava did in Mary’s group. There is also no mutual
regulation of the positioning of the model, i.e., the operation-
alization of the conclusion. The step ends with Marc denoting
that he has found a spot (“There”). As the more able partners
continue to whisper privately, Marc corrects the solution on his
own, accompanied by opaque commentary (“Noo, yeah. And
there”). Unlike in Mary’s group, there are no attempts at reach-
ing a shared conclusion about the differences between their
failed solution and the correct one and, thus, no collective at-
tempts to figure out the causes of the failure. Instead, it seems
as if Marc tries to pretend that initial solution was correct, a lie
for which he first is praised and then called out by Alex, who
ends the task by stating that he has achieved it, indicating an
underlying logic of individual competition.
The rationale for the collaboration in Marc’s group seems to
be that the operator should execute the regulative conclusions
of the more able partners. In his attempt at deceiving the more
able partners, Marc indicates concern for social confirmation
rather than developing his understanding of radiological ex-
aminations. By disengaging from the task-solving activity after
delivering conclusions without explanations, the more able
partners demonstrate a lack of interest in the activity as a
chance to learn from each other. Correcting Marc without ex-
plaining why, they show an interest in getting the task done
rather than learning. In this group, the silent learner enacts the
role of an operator being observed and, insufficiently, regulated.
In Mary’s group, the collaborative rationale is characterized
more by mutual engagement in solving the problem together
and creating shared understanding, at least among the more able
partners, evidenced by the examples of the elicitation of infor-
mation and more elaborate explanations. However, as indicated
by the often absent recognition of Mary’s contributions, that
group, too, still have room for greater engagement in the rela-
tion between the silent learner and more able partners.
Exploring free peer collaborative training with ECAS in
healthcare education, this paper has investigated the interactive
behavior of silent learners and potential more able partners in
successful and unsuccessful sessions and indicated some op-
portunities for the adjustment of these ecologies of resources.
This investigation has been achieved by analyzing the collabo-
rative problem-solving process in more successful and less
successful triads including a silent learner and by comparing
the two groups. The paper contributes to the “observational
studies that evaluate the highest and lowest achievers” for
which Issenberg et al. (2011: p. 157) call in order to explore
and develop techniques for applying ECAS. This study’s ap-
plication has revealed a few challenges, or opportunities, for
adjustment that health educators and designers will want to
utilize to make collaborative learning a beneficial technique for
enhancing learning with ECAS. These challenges are discussed
next, followed by the potential means for meeting these chal-
lenges by adjusting the ecologies through filtering scripts.
Opportunities for Adjustments of the Rel ation
between Silent Learners and More Able Partners
The general challenge for the groups studied in this paper is
Copyright © 2012 SciRes. 791
to actually engage in collaborative activities and learning, or for
the silent learner and more able partners to engage in interac-
tions aimed at constructing a shared understanding of the chal-
lenges and potential solutions in the problem-solving process.
There is a risk, most clearly manifested in Marc’s group, of
individualized task-solving. Enacting the role of operator, Marc
is basically left to complete the task on his own, with little
conceptual interaction with and regulation from the more able
partners, apart from a few opaque conclusions. What the more
able partners do contribute—unelaborated conclusions with no
explicit reasoning—is at best unhelpful and may even be coun-
terproductive (Webb, 1989). A similar, but at the same time
opposite, tendency can be discerned in Mary’s group, in which
the silent learner who enacts the role of observer has to struggle
for her contributions to be accepted as regulatory by the more
able partners. Shared by the more and less successful group,
this tendency acts an exclusionary force that can create and
contribute to structuring silent and passive tendencies in differ-
ent forms (Mulryan, 1992) and contradicts the role of more able
partners as described by Luckin (2010).
However, while Marc’s less successful group demonstrates a
lack of interest in mutually exploring options, ensuring they
have a shared understanding of the relevant information, what
principles to draw upon, and their implications—in short, fo-
cused on getting it done—Mary’s more successful group does
manifest these behaviors to a degree, most apparently in the
actions preceding and following the initial solution (steps 3 and
4). While everyone in Mary’s group approves the solution and
is involved in trying to understand what was wrong with it,
neither of those behaviors exist in Marc’s group. While the goal
of Marc’s group seems to be doing the tasks, Mary’s group at
least moves toward learning by doing. (In fact, the operator in
Marc’s group, Alex, states in the transcript from a later task that:
“You learn the program, but I don’t think you get very good at
‘What is this in reality?’”) That two groups with similar
pre-training proficiency both complete simulation tasks but
only one develops significantly from pre- to post-test indicates
that although the simulation enables content learning, simply
completing the tasks is not enough for development to occur.
Another factor is required, and that may just be a shift in incen-
tive from “getting it done” to engaging with the tasks with the
motivation of collaboratively developing conceptual under-
standing, to negotiations between learners and more able part-
ners about “what is this in reality?”
While the more successful group does engage with the feed-
back given to them, they do not back-track the chain of inter-
pretations and decisions that led to this faulty solution. They
stop at concluding what information they missed but do not
discuss why they missed it or how to avoid making the same
mistake in the future. This behavior may be due to the simulator
feedback focusing on the fault, and not the cause. Relevant
feedback has previously been put posited as the most important
factor in the effective use of EASC (Issenberg et al., 2005;
McGaghie et al., 2010), and I have argued that in this ecology,
what type of feedback students receive impacts the future ac-
tions they take (Häll et al., 2011).
Students can possess overconfidence in the mutuality of their
understanding, which might have contributed to the minimal
regulation of the learner in Marc’s group. Although the simula-
tion is a mediational resource that can act as a referent among
students (Roschelle & Teasley, 1995), shared understanding
does not happen automatically. The plain fact that the opera-
tor’s verbalized interpretation at times prompts objections from
his peers shows that shared understanding is not always
achieved. The information displayed on the screen can be in-
terpreted in many ways, and differences in conceptualizations
will remain hidden as long as students do not state them explic-
itly. Problem solving unaccompanied by explicit reasoning
makes it much harder for the non-operating and silent partici-
pants to keep up and disrupts mutual responsibility for the end
In these two groups, the students’ reasons for picking a par-
ticular task remain unclear. Perhaps the operator chooses the
task that she finds most interesting. However, viewing these
collaborative simulations as learning opportunities for all mem-
bers and as a chance for the learner and the more able partners
to construct a shared understanding of the learner’s needs and
potentially beneficial resources (appropriate tasks), the groups
could benefit from informing their choices with a shared con-
ception of need. This sense, for example, could be supported by
a computer-generated overview of the completed tasks and the
performance of these tasks.
Future Research and Design — A Case f or
Collaborative Scripts as Filters Between Resource
Elements in an Ecology of Resources
Meeting these challenges would be in line with the overall
aims of Luckin’s redesign and with the CSCL research sketched
in the introduction. It is apparent that free collaboration, as
applied in the Learning Radiology in Simulated Environments
studies, faces serious challenges and that a supportive structure
is needed. From the perspectives of Luckin and CSCL, EASC
software and its application are of interest (Stahl, 2011). In
response to challenges identified within CSCL structure peer
groups, European CSCL research (Fischer et al., 2007) has
focused on the related techniques of scripts (Weinberger et al.,
2009) and roles (O’Malley, 1992; Blaye et al., 1991) as poten-
tially beneficial ways of structuring the application. Such
scripts could act as adjusting filters between the learner and the
people resource that more able partners act as in Luckin’s
Collaborative scripts have some similarities with theatre
scripts (Weinberger et al., 2009) and with simulation scenarios
(Kollar et al., 2006) that are central to research on full-scale
medical simulations (Dieckmann, 2008). The major similarities
include the distribution of roles, sequencing of actions and ac-
tivities, and more or less detailed descriptions of how to enact
the roles and scenario (Weinberger et al., 2009). These col-
laborative scripts, which can also be referred to as external
micro scripts (Kollar et al., 2006), are materialized in cultural
artifacts and mediate collaborative activity. They “represent the
procedural knowledge learners have not yet developed” (Wein-
berger et al., 2009: p. 162) and are complementary to the ex-
perience of the participants (or internal scripts). Like training
wheels, scripts are particularly important for students in novel
situations but need to be adapted or faded out as the learners
master the tools and become more competent actors or self-
regulated learners to avoid impeding learning (Dillenbourg,
2002). The script acts as a scaffold, or filter, enabling learners
to do something they would not or could not without support, to
develop more and appropriate this external support. CSCL
scripts are aimed at helping students build and maintain a shared
understanding, thereby supporting the collaborative process and
Copyright © 2012 SciRes.
conceptual development. Scripts are directed at inducing ex-
plicit verbal interaction, such as explanations, negotiations, ar-
gumentations, and mutual-regulation (Weinberger et al., 2009).
Earlier research has indicated that such scripts might, for
example, encourage perceived low achievers to participate
more (Fior, 2008), increase discourse levels (Rummel & Spada,
2005), induce a sense of engagement (Soller, 2001), support an
open atmosphere by creating distance from arguments due to
role changes (Strijbos et al., 2004), induce expectations that
promote learning (Renkl, 1997, referred in Weinberger et al.,
2009), and support acquisition of argumentative knowledge
(Stegmann et al., 2007). Of course, what the scripts achieve is
limited by the designers’ intentions, and the actual script speci-
fications are influenced by the designers’ ideas about students’
needs and what activities promote learning and by the practical
ramifications of the educational context. These limitations can
be informed by an analysis of student activities, general and
particular learning theory, and curricula. Earlier scripts ex-
plored jigsaw grouping (Aronson et al., 1978), conflict group-
ing (Weinberger et al., 2005), and reciprocal teaching (Palin-
scar & Brown, 1984). Although these pre-existing scripts can
act as a source of inspiration, none seems directly applicable in
the ECAS ecology explored in this paper.
While the development and refinement of a script for sup-
porting collaborative learning with the radiology simulator will
be the subject of future work, an attempt could be made along
the following lines. In response to the challenges presented
above and inspired by Palinscar and Brown’s “reciprocal
teaching” (1984; Morris et al., 2010), a simple script could be
built around a refinement of the roles identified for the silent
learner, operator, and regulator. The roles shift upon task com-
pletion so the learner can experience both. The operator roughly
acts as a demonstrating teacher and is given primary responsi-
bility for explaining the tasks for himself and for his peers,
demonstrating the steps that need to be taken, and showing how
to do them in order to complete a task. The operator also ex-
plains the relations among the primary resources of observation
(information in the radiographs), the guiding principles (motion
parallax, for example), and the interpretation and implications
of the operation of the simulator. These actions would boost the
power of the elaborated explanation (Webb, 1989; Fonseca &
Chi, 2010), create an understanding of challenges and potential
solutions shared with more able partners, and make possible
fine, mutual regulation and negotiation. Additionally, the op-
erator gets the input of the more able partners to inform major
decisions, such as the initial interpretation of radiographs and
its implication for the final solution.
The observer and regulator’s task is to make clear whatever
appears as ambiguous, on a conceptual or operative level, re-
garding what is done and how and why it is done. Questions are
asked prompt the current action and are negotiated before fur-
ther action is taken. The questioner’s role may be supported by
generic questions such as “Why do you conclude that X is Y?”
While persuasion is primarily the operator’s role, the regulators
must ensure that the arguments are based on sound evidence.
The regulator is also tasked with summarizing the completed
task, which can encourage the regulator to engage deeply with
the operator’s actions and thought processes and to reflect
thoroughly on the given. More useful feedback, though, might
need to be built into the simulator.
Support for the enactment of this script could be given in
written instructions and teacher-led introductions and integrated
into the software, for example, through just-in-time information
and more elaborated feedback. Following such a script structure
is likely to slow the task-solving cycle but offers the advantage
of making every task contribute more to the learner’s develop-
ment. These scripts would thus act as filters that mediate learn-
ers’ interactions with their ecology of resources, supporting
their negotiation with peers and enabling them to act as more
able partners. These scripts would increase the value of simula-
tions as a means of overcoming the contradiction between
learning and patient safety posed by the apprenticeship model
of health care education.
This script, of course, is merely an outline of an idea that
might change when put in the context of a full-scale ecology of
resources redesign effort. It is possible that qualitative analysis
of additional samples would refine the conclusions drawn from
the empirical data presented in this article. And quantitative
content-analyses structured by categories inferred from these
qualitative findings could be used to investigate the generality
of identified interaction patterns to a larger population (Steg-
mann & Fischer, 2011). Once developed, we would need to
evaluate how the scripts actually influence peer interaction
under a number of variable conditions. In educational practice,
one size will not fit all. What is needed is instead multiple
scripts and/or a mechanism for adapting these scripts to needs
that vary between learners as well as within learners over time.
Weinberger views the “continuous adaptation of scripts to
learners’ needs and knowledge” as a major challenge for script
research (Weinberger et al., 2009: p. 155). This should be a
relevant area of future research.
A different course of action which may require more intru-
sive re-design of the simulator would be in line with the sepa-
rate control over shared space paradigm suggested by Kerwalla
et al. (2005, 2008). This approach would enable all participat-
ing students to display their individual solutions on the same
screen, encouraging comparisons and discussions. However,
even with such a multi-user interface, students seem to need
some sort of script, because the technology on its own cannot
correct poor collaborative skills (Luckin, 2010: p. 70).
This paper draws upon data from the Learning Radiology in
Simulated Environments project, a research and development
collaboration between Umeå University and Stanford Univer-
sity funded by the Wallenberg Global Learning Network.
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