1. Agenda: Thurs OA
Scale work package
Map assignments handed back

2. Map Scale

3. Is this to scale?

4. Is this to scale?

8. Large Scale and Small Scale Maps
Scale determines the amount of detail a map will show.
Large Scale Maps: show a large amount of detail and a small area.
e.g. 1:50 000, 1:25 000
Small Scale Maps: show a small amount of detail over a large area.
e.g. 1: , 1:
*a map of the world that fits on an 8.5 x 11 inch piece of paper has a scale of 1: 100 million.

9. Scale Area Detail Example Large Scale Maps (1:50 000 or less) Small
A lot (LOTS)
(streets, schools, railways, …)
Topographic maps, road maps, city bus maps
Small Scale Maps
(1: or more)
Large
A little (SMALL)
(borders, lakes, large rivers, …)
Globes, world maps, atlases

10. What would be the main uses for a Large-Scale Map?
What would be the main uses for a Small-Scale Map?

11. Scale – Mapping Our Location
Woodroffe High School
You are here!

12. Scale – Mapping Our Location
Woodroffe HS
You are here!
1 cm= 100 m

13. Scale – Mapping Our Location
Woodroffe HS
You are here!
1 cm= 200 m

14. Scale – Mapping Our Location
Woodroffe HS
You are here!
1 cm= 5 km

15. Scale – Mapping Our Location
Woodroffe HS
You are here!
1 cm= 20 km

16. Scale – Mapping Our Location
Eastern Ontario Map
You are here!

17. Scale – Mapping Our Location
Ontario Map
You are here!

18. Scale – Mapping Our Location
Canada Map
You are here!

19. Scale – Mapping Our Location
World Map
You are here!

21. Map Scale
Direct Statement (DS):Uses words to describe the relationship between a distance on a map and a specific distance on the Earth’s surface
e.g. “one centimetre represents four kilometres”
“three centimetres represents eight kilometres”

22. Map Scale
Linear Scale (LS): A special RULER on the map that is divided into equal units which can be used for measuring distance on a map.

23. Map Scale
Representative Fraction (RF): The fraction is a ratio where one unit on the map equals a specific number of the same unit on the Earth’s surface
Always done as a ratio or fraction of 1
e.g. 1: could become,
1 cm : cm or,
1 m : m or,
1 “size 11 boot” : “size eleven boots”

24. Scale: Overview