Several tasks all based on an Edexcel GCSE question about compound area, including circles and a functional element. These tasks are designed to improve students’ mathematical reasoning and were created as part of the Mathematical Reasoning at GCSE project run by Cambridge Maths Hub.
The tasks vary in difficulty, and include work on proportional reasoning, unit conversions (including units of area), error intervals, area of circles and non-circle compound area. They are not intended to be used all together; just pick and choose one or two suitable ones for your class.
Thanks to the awesome Mr Barton for the Venn diagram templates.
For a similar set of tasks which focus on algebraic expressions for area and perimeter, take a look at https://www.tes.com/teaching-resource/algebraic-area-reasoning-tasks-11838759
All feedback very welcome. I’d be really interested to hear which tasks you chose and how you used them!