mph10·2 yıl önce·discussSubtraction is not necessary for division.This is a specific example, and the general point is that there a multiple ways of doing things. If a child can avoid 1 step and skip straight to the result more efficiently, that is a valid way of solving a problem.
mph10·3 yıl önce·discussBy “20% time” do you mean the recommendation to spend 20% of your time learning?
Having a gap is irrelevant if you can demonstrate skills.