About This Lesson
I had a 7th grade group last year that couldn't seem to get it; so I eventually invented a fun way of explaining it to them step by step. It also worked a dream this year with my current group. Once the steps are explained and noted in books; students use mini-whiteboards to complete slides 11-17; following the 4 steps; showing you their answer each time. It's really useful; as if students have an error you can tell them which step to recheck.
