In this open ended maths lesson, learners explore a sequence of gradually larger shapes and consider what mathematical questions they can ask about them. What is the same and what is different about a group of triangles, and how can they be drawn accurately. What measurements make an impossible triangle, and can students work out which triangles come next in a sequence? This KS4 lesson also gives students the chance to use Cosine.
For more Colin Foster geometry and measures lesson plans click here.
Similar resources
- Maths formula booklet – 120 questions for Higher & Foundation
- GCSE maths revision worksheets – Print-friendly foundation sheets
- HCF LCM worksheet – Free KS3 maths worksheet and cards
- Dice and probability – KS4 maths lesson plan with Hit Ten game
- Directed numbers – Adding and subtracting KS3 lesson plan