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Unit 2: The scale of a map and the measuring of distance A. What is a scale?  Purpose: To fit large areas onto small sheets of paper  A ratio between.

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Presentation on theme: "Unit 2: The scale of a map and the measuring of distance A. What is a scale?  Purpose: To fit large areas onto small sheets of paper  A ratio between."— Presentation transcript:

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2 Unit 2: The scale of a map and the measuring of distance A. What is a scale?  Purpose: To fit large areas onto small sheets of paper  A ratio between a distance on the map and the same real distance on the ground surface Scale Next

3 Unit 2: The scale of a map and the measuring of distance B. What are the types of scale? 3 types of scale:  Representative fraction  Statement scale  Line scale Next

4 Unit 2: The scale of a map and the measuring of distance C. What are and maps? Large-scale mapsSmall-scale maps Next small-scalelarge-scale

5 Unit 2: The scale of a map and the measuring of distance Large-scale mapsSmall-scale maps  The objects are smaller  Give less accurate and detailed information Example: 1: 80 000 000 C. What are and maps? Next small-scalelarge-scale

6 Unit 2: The scale of a map and the measuring of distance Large-scale mapsSmall-scale maps  The objects are smaller  Give less accurate and detailed information Example: 1: 80 000 000  The objects are bigger  Give more accurate and detailed information Example: 1: 11 000 C. What are and maps? Next small-scalelarge-scale

7 Unit 2: The scale of a map and the measuring of distance D. How do we find distance with a line scale? Method 1: Step 1: Mark two points on the edge of a piece of paper which correspond to the distance between two places. Step 2: Put the piece of paper along the line scale to find the actual distance between these two points. Method 2: Step 1: Open the dividers to the distance between two certain points. Step 2: Compare the distance with the line scale. Next

8 Unit 2: The scale of a map and the measuring of distance Terms to learn:  Scale - a ratio between a distance shown on the map to the same real distance on the ground surface  Representative fraction - a scale in the form of a ratio  Statement scale - a scale written in a short sentence or phrase  Line or linear scale - a scale in the form of a line with divisions to show distance End

9 Unit 2: The scale of a map and the measuring of distance Representative fraction  Shown in ratio Example: 1:1000 Go Back

10 Unit 2: The scale of a map and the measuring of distance Representative fraction  Shown in ratio Example: 1:1000 Statement scale  Written in short sentences Example: 1 cm to 1000 cm i.e. 10 m Go Back

11 Unit 2: The scale of a map and the measuring of distance Representative fraction  Shown in ratio Example: 1:1000 Statement scale  Written in short sentences Example: 1 cm to 1000 cm i.e. 10 m  A line with divisions or phrases Example: (click here) Line scale Go Back

12 Unit 2: The scale of a map and the measuring of distance cm Line Scale Go Back

13 Unit 2: The scale of a map and the measuring of distance Go Back Small-scale map

14 Unit 2: The scale of a map and the measuring of distance Go Back 1:11 000 Large-scale map

15 Unit 2: The scale of a map and the measuring of distance Go Back Step 1 Step 2

16 Unit 2: The scale of a map and the measuring of distance Go Back Step 1 Step 2


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