Map Skills & Scale
Using scale, grid references and keys
Maps: Scale and Grid References
Maps are drawn smaller than real life using a scale. Scale tells us how distances on the map relate to real distances. Grid references help us find exact locations using numbered lines.
Example
Using Scale and Grid
If the scale is 1:50 000, then 1 cm on the map = 500 m in real life.
Measure 3 cm on the map: 3 × 500 m = 1 500 m = 1.5 km
Grid reference: Read along the bottom first (easting), then up the side (northing).
Position at (34, 56) means: go to line 34 along, then up to line 56.
Note
Remember
When reading grid references: 'Along the corridor, up the stairs' (eastings first, then northings). Always check the scale and key before reading a map.
Key Vocabulary
ScaleThe ratio between distance on a map and distance in real life
Grid referenceNumbers used to pinpoint a location on a map
EastingGrid lines numbered along the bottom of a map
NorthingGrid lines numbered up the side of a map
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