MAP SCALES Definition A Map Scale is a

Definition: A Map Scale is a statement of a measure on a map and

Function: • A map scale lets you measure the distance on a map then

3. Direct Statement • A direct statement scale is a statement that indicates the

Example 1: 1 cm to 10 km • 1 cm on the map represents

1. Linear Scale • To use a linear scale, put a ruler over top

2. Representative Fraction • A Representative Fraction expresses what a unit on the map

Example: 1: 50 000 • One unit on the map represents 50, 000 units

Converting… • • • Converting an R. F scale to a Direct Statement scale:

Small Scale Maps Ø World or country map = small scale (1: 360 000

Large Scale • Town map or neighborhood map = larger scale, it features roads

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MAP SCALES

Definition: A Map Scale is a statement of a measure on a map and the equivalent measure on the Earth's surface.

Function: • A map scale lets you measure the distance on a map then figure out how far that distance is in the real world.

3 Types of Map Scales

3. Direct Statement • A direct statement scale is a statement that indicates the scale of the map.

Example 1: 1 cm to 10 km • 1 cm on the map represents 10 km in the real world • If the distance between Here and There is 3 cm (3 x 10) …therefore 3 cm = 30 km

1. Linear Scale • To use a linear scale, put a ruler over top of the scale, and then measure the distance on the map.

2. Representative Fraction • A Representative Fraction expresses what a unit on the map represents in the real world. • These can be either metric or imperial – it doesn’t matter.

Example: 1: 50 000 • One unit on the map represents 50, 000 units in the real world. • 1 cm on the map would represent 50, 000 cm on earth.

Converting… • • • Converting an R. F scale to a Direct Statement scale: 1 cm = 50, 000 cm 1 cm = (50, 000 / 100, 000)km 1 cm = 0. 5 km **100, 000 cm in a km** Converting a Direct Statement scale to an R. F scale: 1 cm = 2. 5 km 1 cm = (2. 5 x 100, 000)cm 1 cm = 250, 000 cm or 1: 250, 000

Large Scale vs. Small Scale

Small Scale Maps Ø World or country map = small scale (1: 360 000 000) allows for an overall view, but not much detail. Ø Ideal for travelling by car -- cover large areas of land.

Large Scale • Town map or neighborhood map = larger scale, it features roads that can be shown clearly (1 cm: 500 m) • Better for showing individual buildings in detail because they only cover a small area of land.