Year 6 Properties of Shape – Angles in a triangle – Missing angles – Lesson 6

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Description

In this lesson, children learn the meaning of hatch marks and use this to help them find missing angles in isosceles and right-angled triangles. They use other known facts from previous lessons to help them solve missing angle problems. There is a teaching presentation accompanied by differentiated activities with a range of fluency, reasoning and problem-solving questions.

National Curriculum Objectives:
Mathematics Year 6:

Compare and classify geometric shapes based on their properties and sizes
Draw 2-D shapes using given dimensions and angles
Find unknown angles in any triangles, quadrilaterals, and regular polygons
Recognise angles where they meet at a point, are on a straight line, or are vertically opposite, and find missing angles

Differentiation:
There are three levels of differentiation in this pack: ‘working towards,’ ‘expected’ and ‘greater depth’.
Level of this Pack:
Age: 10-11
England & Wales: Year 6
Scotland: Primary 6
Rep. Ireland: Fifth Class
Australia: Grade 5
USA: Grade 5

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