A transversal is a line, line segment, or ray that intersects through two or more lines at distinct (different) points.

Corresponding angles are a pair of angles at different vertices on the same side of a transversal in equivalent positions.

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 angles are on the same side of the transversal line and in between the two other lines.

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

Finding a bearing

Maths

Checking and securing understanding of scaled drawings

Checking and securing understanding of drawing accurate scaled diagrams

Following a bearing

Reverse bearings

Problem solving with bearings

In the angles unit, pupils reasoned through more complex problems involving angles. In the bearings unit, pupils apply their knowledge of angles in order to calculate bearings and solve angle problems within the context of bearings.

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

Bearings

Using the image, what is the bearing from A to B?

Using the image, what is the bearing from X to Y?

They are given exactly the same as the measured angle.

They are measured in an anticlockwise direction.

Which of the following is not a convention for bearings?

Which of the following are correctly written as bearings?

Which of the following shows the bearing of B from A correctly marked?

What is 3 km away from the volcano on a bearing of 300°?

A diver is on a bearing of 120° and 4 km away from the boat.  Which is the correct position of the diver?

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?

Finding a bearing

Lesson outcome