Bearings
Where’s Wooly the
Sheep?
Rex, the German Shepherd Dog,
is looking for his sheep.
Rex has his
trusty
compass.
And a slightly
more modern
piece of
equipment.
North
Rex spots his
first sheep.
North
Rex spots his
first sheep.
He begins by facing north,
then turning clockwise to see
the sheep.
North
110°
Rex records the angle
through which he turned.
North
The first
sheep is
on a
bearing
of 110°
110°
North
Rex finds
another
sheep.
Again, he faces
north, then turns
clockwise to see
the sheep.
North
This sheep is on
a bearing of 240°
North
Rex sees his
third sheep.
North
Rex sees his
third sheep.
Face north,
turn
clockwise,
measure the
angle.
North
Rex sees his
third sheep.
A bearing of
310°.
North
West
East
South
What are the bearings of North,
East, South and West?
000°
270°
090°
180°
Why do you think we always use
three figures?
Match these bearings to the sheep.
North
045°
302°
221°
142°
Match these bearings to the sheep.
North
302°
045°
221°
142°
What if Rex has only a small
protractor?
Easy to measure the ones less than 180°.
North
045°
140°
For the ones greater than 180°, turn the
protractor one half turn, then add 180°.
North
302°
221°
For the ones greater than 180°, turn the
protractor one half turn, then add 180°.
North
302°
221°
Remember to
read the
clockwise side
of the
protractor!
Bearings
360/000o
N
1. Measured from North.
2. In a clockwise direction.
060o
270o
60o
W
090o
E
3. Written as 3 figures.
S
180o
N
W
145o
S
N
N
E
145o
W
230o
230o
S
315o
E
W
315o
S
E
A
protractor is
used to measure
bearings.
Bearings
360o
315o
360/000o
350o
N
020o
NW
045o
NE
(Worksheet 1)
290o
270o
Use your protractor to
measure the bearing
of each point from the
centre of the circle.
080o
W
E
250o
110o
SW
225o
SE
210o
S
180o
160o
135o
090o
N
360/000o
030o
330o
045o
315o
290o
075o
090o E
W 270o
Control
Tower
Estimate the
bearing of
each aircraft
from the
centre of the
radar screen.
110o
250o
135o
225o
170o
200o
180o
S
Air Traffic
Controller
Bearings
Measuring the bearing of one point from another.
To Find the bearing of B from A.
N
A
060o
B
1. Draw a straight line between both points.
2. Draw a North line at A.
3. Measure the angle between.
Bearings
Measuring the bearing of one point from another.
To Find the bearing of A from B.
N
B
240o
A
1. Draw a straight line between both points.
2. Draw a North line at B.
3. Measure angle between.
Bearings
Measuring the bearing of one point from another.
N
N
240o
A
060o
B
How are the bearings of
A and B from each other
related and why?
Bearings
Measuring the bearing of one point from another.
N
To Find the bearing of Q from P.
P
1. Draw a straight line between both points.
2. Draw a North line at P.
3. Measure angle between.
118o
Q
Bearings
Measuring the bearing of one point from another.
To Find the bearing of P from Q.
N
298o
P
1. Draw a straight line between both points.
2. Draw a North line at Q.
3. Measure angle between.
Q
Bearings
Measuring the bearing of one point from another.
N
N
298o
P
118o
How are the bearings of
A and B from each
other related and why?
Q
360/000
330
Bear ings
Bearings are Measured
1. From North
2. Clockwise
3. Using 3 figures
N
030
300
Find the bearings of the following:
1. A from B
4. M from N
2. C from D
5. P from Q
3. Tfrom S
6. V from W
060
E 090
270 W
120
240
210
150
S
1
.
060o
2.
A
B
5.
302o
N
D
180
125o
234o
C
4.
M
3. S
P
Q
232o
T
6
V
310o W
360/000
330
Bear ings
Bearings are Measured
1. From North
2. Clockwise
3. Using 3 figures
N
030
300
Find the bearings of the following:
1. A from B
4. M from N
2. C from D
5. P from Q
3. Tfrom S
6. V from W
060
E 090
270 W
120
240
210
150
S
1
.
2.
A
B
180
3. S
D
C
T
5.
4.
M
N
P
Q
6
V
W
Bearings
000/360o
N
270o
W
E
S
180o
090o
My
Estimated
Bearing
True
Bearing
Error
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
11
11
12
12
My
Estimated
Bearing
True
Bearing
Total
Error
Total
Error
Average
Error
Average
Error
Error