# Teaching for mastery in primary maths

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## Angles

• Year group: Year 3
• Term: Summer
• Topic: Geometry
• Duration: 1 weeks
• Keystage: KS2
• Age Range: 7 to 8 yrs
• Unit can be taught out of sequence: Y
• Week Range: 7

In this chapter, pupils recognise angle size as being the property of shape or the description of a turn.

Pupils recognise angles as being one of the properties of shape or the description of a turn. They identify right angles, recognise that two right angles make a half-turn, that three make three-quarters of a turn and that four make a complete turn. They also say whether angles are “greater than” or “less than” a right angle.

Additionally, pupils identify horizontal and vertical lines, as well as pairs of perpendicular and parallel lines.

Download all geometry chapters as a PDF

## Resources for this topic

### White Rose Maths

#### Lines

Flag investigation to help children recognise different lines.

#### Y3 - Angles

Direct link to our Y3 scheme.

### Mathematics Mastery

#### Angles

Deepening pupils’ understanding of key mathematical ideas is a core element of the Mathematics Mastery programme.

Our Key Constructs highlight the essential mathematical concepts all pupils are expected to grasp within each year group, with accompanying guidance for assessing pupil progress.

Our Key Constructs are closely aligned to the National Curriculum’s objectives. We know these can be tricky to evidence, so we’ve included an example task for each concept, as well as ideas to support slower-graspers and depth tasks to challenge higher-attaining pupils.

• Pupils should work through the tasks independently
• Teachers should incorporate the CPA approach to support pupils’ learning
• Opportunities for depth and scaffolding are built into each task

Like what you see?

Mathematics Mastery is a professional development programme for teachers with a mission to transform mathematics education in the UK.

This task is just a taster of the complete classroom resources we offer. We also provide in-depth development training, online CPD, specialist support and assessment tools.

We believe all elements of our programme are vital in creating lasting change – enabling every child to enjoy and succeed in mathematics.

Want to find out more? Check out our free resources and blogs or join an information session.

#### Angles

Enabling pupils to develop their mathematical reasoning skills through independent work is a key element of the Mathematics Mastery programme.

This activity explores the concept of angles

• Pupils should complete these tasks using concrete manipulatives as part of the CPA approach
• Pupils should be encouraged to explain their working in full sentences
• These tasks may be adapted with pupils working in pairs to encourage mathematical discussion

Like what you see? Mathematics Mastery is a professional development programme for teachers with a mission to transform mathematics education in the UK.

This task is just a taster of the complete classroom resources we offer. We also provide in-depth development training, online CPD, specialist support and assessment tools.

We believe all elements of our programme are vital in creating lasting change – enabling every child to enjoy and succeed in mathematics.

Want to find out more? Check out our free resources and blogs or join an information session.

### Resources shared by teachers

#### Vertical or horizontal?

Lots of lovely pictures showing horizontal and vertical lines for children to identify - great for a starter!

#### Maths Primary: Measuring/Shapes 'Straws 2'

Straws contains 10 activities to develop thinking skills and facts for shape at KS1, KS2 and KS3. Straws 2 adds another 4 activities, to include symmetry, perimeter and nets. Simple ideas and a great range of activities lead to real exploration of properties of 2-D shapes, and more.

#### Y1 position and direction activity

A simple activity to introduce directions forward, backward, left and right. Children have the printed grid and have to follow the given directions. Directions are on a powerpoint presentation to display on IWB but could be printed out or read out loud to the children.

#### Parallel and perpendicular lines

Worksheet to reinforce learning of parallel and perpendicular. Very simple format used to support yr5

#### QR Code Puzzle 9 - Angles In Triangles

Answer the questions, colour in the QR code where appropriate and get a video of James Blunt on Sesame Street singing about triangles with Telly Monster.

#### Investigating Angles

These worksheets can be used in a single carousel/round robin-style lesson or separately. The left half of each is an investigation of an angle rule and the right half has missing angle problems related to that rule. The missing angle problems increase in difficulty.
I divided my class into colour groups based on ability level to investigate each rule. I used envoys and 'rainbow groups' (1 person from each colour group) to share what each pupil had learnt, before doing a 4-question test at the end of the lesson.

#### Angles- corresponding and alternate level 6 lesson

Three part lesson on finding missing angles formed by parallel lines (interior angles not included). Mini-plenary and plenary activities embedded. Answers provided throughout.

#### Geometry Revision Flashcards - 2D, 3D Shapes.

Geometry flashcards include 2D and 3D shapes, angle facts, metric units of measurement, transformations and area of triangles and quadrilaterals. You can display them on the screen or print them back to back. Every second page is the ‘answer’ or flipside to the odd numbered pages. Hope that makes sense! e.g. on one side it might show a shape and ask you to name it and on the next page it has the shape’s name.