The document discusses scales used in maps, models, plans and drawings. It explains that a scale is a ratio that compares the size of an object to its representation. It provides examples of different scales using ratios such as 1cm = 2cm at a scale of 1:2, 1cm = 3cm at a scale of 1:3, and 5cm = 1cm at a scale of 5:1. The document concludes by instructing the reader to practice using scales by opening Keynote and resizing shapes using different scale ratios.

2. SCale

3. SCale
SCale

4. SCale
SCale
SCale

5. SCale
SCale
SCale

6. A scale is a ratio of size in a
map, model, plan or
drawing.
Ratios are a way to
compare two numbers or
quantities.

7. 2cm
2cm

8. 4cm
4cm

9. 4cm
2cm
2cm 4cm
Scale: 1cm = 2 cm
Ratio: 1: 2

10. 4cm
4cm

11. 12cm
12cm

12. 12cm
4cm
4cm 12cm
Scale: 1cm = 3 cm
Ratio: 1: 3

13. 15cm
10cm

14. 3cm
2cm

15. 15cm 3cm
2cm
10cm
Scale: 5 cm = 1 cm
Ratio: 5:1

16. Now it’s your turn!
Use Keynote to scale some images.
Here’s how:
1. Open Keynote
2. Create a shape.
3. Use the Inspector to make sure the length and
width is a whole number.
4. Decide on a scale you want to use.
5. Duplicate the shape.
6. Use your scale to enlarge or reduce the shape
using the Inspector.