David Cordeau, a teacher at Roslyn Middle School, was convinced that the key to unlocking algebra was making it fun.

A Venn diagram shows the relationship between a group of different things. It allows us to sort data into two circles which overlap in the middle. Venn diagrams are great for helping us organise two ...

An education consultant planted a seed in my mind several years ago about the usefulness of the triple Venn diagram. She showed the school staff one similar to the one on the left and argued that ...