| Goal: Create high-quality lessons | Goal: Curate the lessons for quality and identify relevant lessons for particular subjects | |||
| Developer | Reward for developer | Method | Measure of quality | |
| BetterLesson ShareMyLesson NSTA Learning Center | Individual teachers | No | Crowd sourcing by teachers | Ratings |
| TeachersPayTeachers | Individual teachers | Yes | Crowd sourcing by teachers | Ratings and sales |
| CPALMS | Individual teachers | No | Expert review | Criteria |
| Khan Academy MIT BLOSSOMS | Experts | Yes | Expert review | Criteria |
| Proposed blended model | Lesson Study Teams | No | Lesson Study | Seal of Approval from Lesson Study |