classifying angles

Classifying Angles

Give your KS3 Maths class ample opportunities in classifying different types of angles including obtuse angles, acute angles, and reflex angles.

Target Age:

Lesson Overview

By the end of this unit, learners will:

  1. classify angles by sight, including within geometric figures;
  2. be familiar with and use conventional markings for right-angles;
  3. be introduced to the vocabulary of interior and exterior angles.

Curriculum Alignment: Key Stage 3: Geometry and Measures

  • derive and illustrate properties of triangles, quadrilaterals, circles, and other plane figures [for example, equal lengths and angles] using appropriate language and technologies
Last updated on: February 21, 2026

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