Ratio and bar model - one value given.

This is a lesson for my set 4 (of 4) year 8 class. It starts with two lots of recaps, one simplifying ratios and then splitting an amount into a given ratio using the bar model (both recap).

Then we look at how to find amounts when one ratio is given. This also uses the bar model. In the notes I have included some of the questions that I need to ask the class.

Hope this helps.