Dedicated Year 6 resources for angles in triangles (isosceles, equilateral, scalene), applying the 180 degrees sum rule and properties of the shape, a core KS2 Maths objective for geometry. Activities build conceptual understanding of how side lengths determine angle sizes and promote reasoning in solving for unknown angles. This essential small step supports mastery of angle properties and is vital for meeting national curriculum expectations. The CS Maths Scheme provides structured calculation tasks.
Full step description and curriculum objectives