A fun investigation asking pupils to make as many percentage sentences as they can from the numbers given in the bubbles. (I believe there are 30 possible from the given lists!) See if you and your pupils can find more! I used it with year 7 and they engaged with it completely.

I used this as a starter for a year 11 revision lesson. It could also be used in an introduction lesson to trigonometry where perhaps you want the students to solve the problems at a later time.