Direction and Scale
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Compass rose
How can we remember the points of the compass?
‘Never eat shredded wheat!’
Now think of your own slogan.
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Bearings
You want to walk from your house
(‘1’) to your friend's house by the
beach (‘2’).
What bearing do you need to take?
Easy Guide to Bearings!
1. Draw a north line from your starting point.
2. Join your starting point to your destination with a
straight line.
3. Put the line of your protractor on the north line
with the middle of it on the starting point.
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Finding your bearings
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Finding your bearings
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Scale
The scale on a map can be written in different ways:
1. A scale line
0
2. Use ‘:’ which means represents
1km
1 : 25000
This means 1 cm/metre/kilometre on the map
represents 25000 cms/metres/kilometres on land.
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What do you notice about these two maps of
the same area?
A
B
Map ‘A’ covers a smaller area than map ‘B’.
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How far is it from…
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Scale
This is a 1:50 000 OS map.
This means 1 cm on the map
represents 5 000 cms on the ground.
It would be easier to convert
50 000 cms into kilometres…
How many metres are in 50 000 cms?
There are 100 cms in 1 metre and so… there are 50 000cms
in 500 m. How many kilometres in 500m?
There are 1000 metres in 1 km and so…there is 500m in
0.5km…
Therefore 1cm represents 0.5 km on a 1:50 000 OS map.
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How far it is from…?
1) What is the distance
between the train station
in Swanage and the end
of Peveril Point?
2) What is the distance
between the Town Hall
and the woodland north
of the groynes?
Peveril Point
0
1km
1 : 50 000
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Find the treasure!
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Make your own map!
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© Boardworks Ltd 2004