Finding a bearing
I can find a bearing between the points on a map or scaled plan.
Finding a bearing
I can find a bearing between the points on a map or scaled plan.
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Lesson details
Key learning points
- If the map is to scale, then you can use a protractor to measure the bearing.
- If the map is not to scale, you may need to use angle facts.
- North is always the same direction which means you have parallel lines.
Keywords
Transversal - A transversal is a line, line segment, or ray that intersects through two or more lines at distinct (different) points.
Corresponding - Corresponding angles are a pair of angles at different vertices on the same side of a transversal in equivalent positions.
Alternate - Alternate angles are a pair of angles, both between or both outside two line segments, that are on opposite sides of the transversal that cuts them.
Co-interior - Co-interior angles are on the same side of the transversal line and in between the two other lines.
Bearing - A bearing is an angle measured in degrees from North in the clockwise direction and written with three figures.
Common misconception
Pupils do not measure the angle from North and simply measure the angle between two line segments.
Reiterate bearings are always measured from North, in a clockwise direction and stated as 3 figures. Encourage pupils to draw North on the correct position before attempting the question.
To help you plan your year 10 maths lesson on: Finding a bearing, download all teaching resources for free and adapt to suit your pupils' needs...
To help you plan your year 10 maths lesson on: Finding a bearing, download all teaching resources for free and adapt to suit your pupils' needs.
The starter quiz will activate and check your pupils' prior knowledge, with versions available both with and without answers in PDF format.
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The assessment exit quiz will test your pupils' understanding of the key learning points.
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Explore more key stage 4 maths lessons from the Bearings unit, dive into the full secondary maths curriculum, or learn more about lesson planning.
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Lesson video
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Prior knowledge starter quiz
6 Questions
Q1.Which of the following is not a convention for bearings?
Q2.Which of the following are correctly written as bearings?
Q3.Which of the following shows the bearing of B from A correctly marked?
Q4.What is 3 km away from the volcano on a bearing of 300°?
Q5.A diver is on a bearing of 120° and 4 km away from the boat. Which is the correct position of the diver?
Q6.Point X is 4 km away from point A on a bearing of 240° and point Y is 5 km away from point X on a bearing of 120°. Which is the correct position of point Y?
Assessment exit quiz
6 Questions
Q1.Using the image, what is the bearing from A to B?
Q2.Using the image, what is the bearing from A to B?
Q3.Using the image, what is the bearing from X to Y?
Q4.Using the image, what is the bearing from X to Y?
Q5.Using the image, what is the bearing from A to B?
Q6.Using the image, what is the bearing from A to B?
