(Example) Lesson planning for multi

(Example) Lesson planning for multiplication based on the constructive approach
The teacher sets a task—“If each person gets 12 flowers, how many do you need for four people?”—that is, in keeping connection with children’s previous learning patterns.
Children solve 4 x 12 in their own ways, like the followings.
(A) 12+12=24, 12+12=24, 24+24=48,
(B) 4x10=40, 4x2=8, 40+8=48,
(C) (12=6+6) 4x6=24, 24+24=48,
(D) (12=2x6) (4x2=8) 8x6=48
Children work on the similar task “4x18” by comparing the various ways of solution.
Children present the results of their investigation and discuss why their ways of solution are going well and which way is the best
Each child chooses the way he or she regards as best. Because the aim of this lesson is that children come up with their own ways of calculating and consider the best way from their own perspective, the teacher doesn’t always tie them up into one unified, best solution.