Lesson Study Video for Thinking Systematically: Farther Discussion (HaKaSe) (5 of 6)

Further Discussion (HaKaSe) (5 of 6)

However, there is a further and final stage of the lesson that consists of reviewing the solution process. One student draws a straight-line graph relating the number of pencils and the number of ball-point pens. The teacher shows another way of making a graphical representation. At this stage the solution process is reviewed using the motto “HaKaSe” (Fast, Simple and Accurate) which students are familiar with. Students are not convinced that using a table is the quickest way of finding a solution.

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