"I love this approach to teaching math with my students. . ." Eugenia B. (Teacher) The Amazing Colour Factor Multiplication Square is a resource that can be copied and duplicated for your children, pupils and students as many times as is needed. It facilitates whole brain learning by bringing into play many of the brain's most natural and powerful abilities. Although especially effective if you are already familiar with the play based approach to maths outlined in Child's Play Maths 1 & 2 it can also be used independently of these programs as a powerful learning aid.