Year 6 Missing Angles Lesson

**A ready-to-teach Year 6 geometry lesson focused on finding missing angles in triangles, quadrilaterals, and on straight lines and around a point in KS2 maths.

This lesson develops pupils’ understanding of angle facts and their ability to calculate unknown angles using known geometric rules.**

This Year 6 maths lesson focuses on finding missing angles in a range of geometric contexts.

Pupils apply key angle facts including angles in triangles, angles on a straight line, angles around a point and angles in quadrilaterals. They use these rules to calculate missing values and solve reasoning problems involving unknown angles.

The lesson builds confidence in identifying which angle facts to apply and selecting efficient strategies to solve problems accurately.

Teachers can use the included Smart Notebook input slides to model methods clearly and guide pupils through structured examples before independent practice.

Pupils then complete a differentiated independent activity designed to support all learners while still providing appropriate challenge. The tasks develop fluency with angle facts, geometric reasoning and SATS-style problem solving.

This resource is ideal for Year 6 geometry lessons, KS2 reasoning practice, SATS revision, or targeted intervention sessions.

What’s Included
✔ Smart Notebook input slides for teacher modelling
✔ Differentiated independent worksheets (2 levels)
✔ Plenary task

Why Teachers Use This
✔ Ready-to-teach lesson with no planning required
✔ Builds confidence with key KS2 angle facts
✔ Develops geometric reasoning and problem solving
✔ Supports SATS-style missing angle questions
✔ Covers triangles, quadrilaterals and angle rules

Lesson Breakdown
✔ Input: Teacher modelling of angle facts and strategies
✔ Guided Practice: Finding missing angles in shapes
✔ Independent Task: Differentiated worksheets (2 levels)
✔ Plenary: Reasoning and explaining methods