This is a powerpoint presentation with a treasure hunt activity for changing the subject of a formula. It is differentiated as questions graudally get harder and I'm selling a RED - harder version as well for further differentiation. I find this activity works best when printed out and stuck around the classroom. Students then rearrange the formula on the slide and the answer is found on the next slide in the treasure hunt order. There is a full answer slide at the end of the activity. This is a great Kinaesthetic actvity for changing the subject / rearranging formulae.