This time, I covered "Fraction × Fraction" from the Tokyo Shoseki 6th-grade math textbook. This lesson is very interesting because it shakes up the image children have that "multiplication makes ...

In this video, we provide essential "math help" by explaining how to simplify complex fractions, which often involves careful "algebra" and understanding "rational functions". This "math tutorial" ...

They learned this in the same flow during 5th-grade decimal multiplication. I believe this is a unit where children's "common sense up to now" changes, even within math learning. This "moment when ...