crystal line
crystal adlı kullanıcıdan daha fazla fikir
Japanese Math. This works. I want to teach my 3rd graders a few ways to solve multiplication: Traditional, lattice, and now maybe this--I think it would be fun. :)

Japanese Math. This works. I want to teach my 3rd graders a few ways to solve multiplication: Traditional, lattice, and now maybe this--I think it would be fun. :)