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Year 10 - Maths

Following a bearing

Bearings

Unit Summary

In this unit, pupils apply their knowledge of angles in order to calculate bearings and solve angle problems within the context of bearings.

Lesson Summary

You will learn to identify the position of point B given its bearing from point A.

Key Notes

  • The position of a point can be described in terms of another point.
  • When translating, you described moving left/right and up/down.
  • For bearings, you describe standing on a point and turning a number of degrees to face the new point.
  • The bearing is always measured clockwise from North and described with three digits.
  • The distance to the new point does not need to be described, but can be.

Vocabulary To Learn

  • Bearing: A bearing is an angle measured in degrees from North in the clockwise direction and written with three figures.

Common Mistakes To Avoid

  • Neglecting to follow the 3 conventions of bearings. Particularly, going anticlockwise when given a bearing over 180 degrees.

3 Quick Questions (With Answers)

1. Solve this in steps: explain the method from this lesson and why each step matters.

The position of a point can be described in terms of another point. When translating, you described moving left/right and up/down.

2. Use this key word in a maths sentence and explain it clearly. 'Bearing'

A bearing is an angle measured in degrees from North in the clockwise direction and written with three figures. Use this word when showing your method, then check your final answer is reasonable.

3. Spot and fix this common maths mistake.

Mistake: Neglecting to follow the 3 conventions of bearings. Particularly, going anticlockwise when given a bearing over 180 degrees. Correction: Pupils can be asked to stand and turn 90 degrees. Some will turn clockwise and some anticlockwise. This will create a discussion point about the direction being important. Having the clockwise convention means a direction does not need to be given.

More Lessons In This Unit

Browse all guides in the Year 10 Maths guide library.