types of angles

Identifying Types of Angles

In this lesson, you will be able to identify the different types of angles such as acute angles, obtuse angles and right angles.

Target Age:

Lesson Overview

By the end of this unit, children will be able to

  • Identify the different types of angles such as acute angles, obtuse angles and right angles.

  • Develop your understanding of obtuse and acute angles by comparing with a right angle.

  • Understand that an acute angle is between 0 degrees and 90 degrees and an obtuse angle is between 90 degrees and 180 degrees.

  • Understand that a right angle is exactly 90 degrees.

Curriculum Alignment: Year 4 Geometry – properties of shapes

  • identify acute and obtuse angles and compare and order angles up to 2 right angles by size.
Last updated on: February 26, 2026

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