Research suggests that a layered approach provides instructional guidance that is more effective than formally teaching a lesson, using examples, and then giving a problem set for the student to complete. By alternating between worked example problems and then solving problems themselves, students pay more attention to the example because they know they are going to need to use the strategies or steps to solve the next problem independently. They also do a better job of recognizing what they do not know and learning from any mistakes.
Best-suited for students with weaker: Attention, Long-term Memory, Metacognition, Working Memory, Processing Speed (Source: Digital Promise Learner Variability Project)