Mathematics

Intermediate

50 mins

Teacher/Student led

Learning Goals

Learning Outcomes

Lesson Files

+80 XP

What you need:
IWB/Projector/Large Screen
Protractor

Drawing Angles with a Protractor

Learn to draw angles accurately using a protractor by following the mark-then-move protocol. Master the four-step process: centre cross, baseline ray, count to target, mark the dot, then connect.

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1 Getting Started
2 Watch and Notice
3 Try It Together
4 Draw Each Angle in Your Copy
5 Class Challenge
6 What Did We Notice?
7 What's Next
Pupil practice

1 - Getting Started ~2 mins

Your teacher is going to draw a 60° angle on the board. Watch carefully.

👇 Mark your steps as done as you complete them.

+5 XP

2 - Watch and Notice ~8 mins

Watch four finished angles on the protractor. For each one, the same four steps happened in order: mark the centre cross, draw the baseline ray, count up to the target on the right scale and mark a dot, then connect the cross to the dot.

60° — straightforward acute

95° — only just past 90°

135° — well into obtuse

175° — almost a straight line

👇 Mark your steps as done as you complete them.

+10 XP

3 - Try It Together ~10 mins

Your turn. A volunteer brings their copybook and protractor to the front (use the document camera if you have one, or work at the board with a teacher's large protractor). You're given a target angle to draw.

Name the next step

The teacher leads the steps. Before each move, say the next step out loud: cross… baseline ray… count to the target… mark the dot… connect. When the angle is finished on paper, we drag the orange ray on the angle-tool below to confirm the size on screen.

Today we work through 110° first, then 75°.

Drag the ray to confirm the volunteer's finished angle

+15 XP

4 - Draw Each Angle in Your Copy ~12 mins

COPYBOOK MOMENT

In your maths copy, use your protractor to draw each of these target angles. Label each one with its degree underneath. When you have drawn all five, circle the one you found hardest to draw.

30°
75°
90°
115°
165°

+10 XP

Pupil practice

Module 6 · 2D and 3D Shape, Angles, Symmetry Shape & Space

Lesson 72 · Drawing Angles with a Protractor

Download Activity Book page (PDF)

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