Importance of metacognition in basic electric circuit problem solving process

In spite of mastering scientific knowledge and formula necessary for the solution, we sometimes encounter a situation where we cannot reach the correct answer. The reason must be contributed to the lack in metacognitive abilities. Participants were required to solve two problems on basic electric circuit. The solution process was divided into (a) comprehension, (b) plan of solution, and (c) execution. At the plan process, statistically significant differences were detected between the high and low score groups. The importance of metacognitive ability, especially the plan ability was identified.