Powerpoint Lesson(s), worksheets, and exit ticket for 3 tiers of ability including lower ability (LA) and a higher ability (HA). Fully worked examples, fading timers. Two recall activities included in the powerpoints. The stretch questions increase in difficulty across sheets. Differentiated along RAG lines. Ideal for KS3 or as a cover lesson as examples are worked and solutions are provided. The watermark is not present on the downloaded files.