
S. BOONLERTS, M. INPRASIT HA
Singapore is similar to many other Asian countries; the Min-
istry of Education (MOE) develops and issues a national
mathematics curriculum (syllabus), and all schools are required
to follow the syllabus in teaching, learning, and assessment.
Accordingly, textbooks must align with the syllabus. All school
textbooks in Singapore first must be reviewed and approved by
an evaluation committee appointed by the Ministry of Educa-
tion (Fan, 2010).
For Japan and Singapore, textbooks in this study were se-
lected from one publishing company and based on their wide
use by schools. These Japan textbooks were translated into the
Thai Language in 2009. This Thai version has been in use in
the 22 Schools participating in the Research project. The Sin-
gapore textbooks, which are published in English, have been
used in some Thai bilingual schools In total, the following 14
mathematics textbooks from the three countries were examined
in this study: in Japan, five Mathematics for Elementary School
for grades 1 - 3 published by Gakkoh Tosho were selected; in
Singapore, six “My Pals Are Here” (2nd ed.), published by
Marshall Cavendish Education (2010) were selected for first to
third Grades, in Thailand, three mathematics textbooks are
provided for first to third Grades and published by IPST.
Conceptual Frameworks
Two conceptual frameworks were used to analyze the pres-
entation of multiplication in mathematics textbooks through
content analysis reported Son & Senk (2010). These analyses
focused on aspects of the textbooks Overall structure (number
of units or lessons and sequence of topics)
The analysis of the textbooks’ content focused on the prob-
lem situations in multiplication in each textbook. Using Greer’s
the classes of situations involving multiplication and division of
integers: equal groups, multiplication comparison, Cartesian
product, and rectangular area (Table 1). This study analyzed
problems in the entire textbook.
Results
The study examines the overall structure and sequence of
topics in the textbooks and the general format of each lesson.
The Overall Structure and Sequence of Topics
In each country, all the textbooks in grades 1 - 3 present
number and operation (addition subtraction, multiplication,
division of whole number), geometry (shape, volume, length,
mass) and table and graph. Only the Singapore series contains
different content in the textbook such as fractions, area and
perimeter, perpendicular and parallel lines.
The Thai textbooks present a chapter on multiplication in
each grade (2nd and 3rd grades) and have one chapter that be
related, is review, word problem and making problem of addi-
tion, subtraction, multiplication and division. Singapore and
Japanese textbooks consist of several chapters in each grade.
For example, Japanese textbooks for second grade consists of
(1): expression as a multiplication sentence, multiplication (2):
The 2×, 5×, 3× 4× multiplication table, multiplication (3): the
6×,7×,8×,9×, 1× multiplication table, and multiplication (4):
multiplication game, multiplication table. Similarly, Singapore
textbooks consist of several chapters for multiplication in each
grade.
The Japanese and Thai textbooks begin teaching multiplica-
tion in the second grade whereas Singapore textbooks introduce
multiplication in the first grade.
In the Japanese second grade textbooks, the sequences of
topics in multiplication are: learning unit 1; the meaning of
multiplication, multiplication sentence, unit 2: the multiplica-
tion tables of 2, 5, 3, 4, unit 3: multiplication tables of 6, 7, 8, 9,
1, and unit 4: multiplication table, multiplication game. In sum-
mary, the learning units of multiplication are organized as the
meaning of multiplication, multiplicands, multipliers, and mul-
tiplication table. The laws of calculation (commutative, asso-
ciative, and distributive), algorithm and the rules of multiplica-
tion are introduced in the elementary mathematics textbooks.
In the Singapore textbooks, the meaning of multiplication is
introduced through the use of equal-sized groups and arrays.
The chapter is divided into small topic, such as in first grade,
making multiplication stories and solving word problems. In
second grade, the meaning of multiplication is defined by re-
lating to whole number system through many representations,
including equal-sized groups, array, and equal “jumps” on
number line for multiplication. Students learn the basic multi-
plication facts and computation. Singapore textbooks follow the
following sequences: the topic of multiplication tables of 2, 3, 4,
5 and 10 in second grade and multiplication tables of 6, 7, 8 and
9 in third grade. They use the properties of addition and multi-
plication (commutative, associative and distributive properties,
without being named) to multiply in the whole numbers system
and apply increasingly sophisticated strategies with these prop-
erties to solve multiplication and division problems involving
the basic facts. By comparing the variety of solution strategies,
students set multiplication and division as inverse operations.
Thai textbooks begin teaching multiplication in the second
grade. There are 46 pages in the chapter on multiplication, with
the introduction of the meaning of multiplication making up
approximately 8.7% and the procedural rules of multiplication
takes up 50%. In the third grade the emphasis is on procedural
rules and obtaining results (Table 2). Thai textbooks have a
sequence of topic of multiplication tables of 2, 3, 4, 5, 6, 7, 8
and 9 in the second grade. In second grade and third grades
they emphasize procedural calculation.
Meaning Given to Multiplication
The content analysis of the multiplication content found that
Japanese, Singapore and Thai textbooks have similar and dif-
ferent issues in the sequence of introducing multiplication,
meaning of multiplication. It can be summarized as follows
(Table 3).
Singapore and Thai mathematics textbooks are similar in in-
troducing the meaning of multiplication through equal group
with repeated addition, while Japanese mathematics textbooks
start with presenting the description of multiplication through
equal group, then presenting repeated addition later.
Discussion
The results of the content analysis indicate that Japanese
textbooks devoted more pages to multiplication than Thai and
Singapore textbooks. However, the percentage of pages is not
enough to justify the importance of multiplication topic in the
textbook. Other aspects of the textbook were analyzed. While
Singapore textbooks begin teaching multiplication in the first
grade, Thai and Japanese textbooks begin in the second grade.
Japanese and Singapore mathematics textbooks emphasized the
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