Children create a simple right angle checker, then use it to identify right angles in a range of regular and irregular 2D shapes. Perfect for KS1.
Greater Than or Less Than a Right Angle Activity - Twinkl
Right angles in 2D shapes
Sorting 2D Shapes - Maths with Mum
Geometry & shapes in Year 4 (age 8–9) - Oxford Owl for Home
Right Angles in Shapes Year 3 Properties of Shape Resource Pack – Classroom Secrets
Year 3 Right Angles in Shapes Lesson – Classroom Secrets
2D Shapes (Year 3)
Right Angles Poster and Activities - Teaching Ideas
Year 3, Right-angled Turns Worksheets, KS2 Geometry: Properties of Shapes
A guide to properties of 2D Shapes by PlanBee