Unit 1
Scale Drawings
Unit Narrative
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Section A
Scaled Copies
Section Goals
- Determine whether a figure is a scaled copy of another figure, by examining corresponding side lengths and angle measures.
- Draw a scaled copy of a figure using a given scale factor.
Section Narrative
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1
What Are Scaled Copies?
Let's explore scaled copies
2
Corresponding Parts and Scale Factors
Let's describe features of scaled copies
3
Making Scaled Copies
Let's draw scaled copies.
4
Scaled Relationships
Let's find relationships between scales copies
5
The Size of the Scale Factor
Let's look at the effects of different scale factors
6
Scaling and Area (optional)
Let's build scaled shapes and investigate their areas
Section B
Scale Drawings
Section Goals
- Explain how to use scales and scale drawings to calculate actual distances and areas.
- Create a scale drawing given the actual measurements of the object or given another scale drawing at a different scale.
Section Narrative
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7
Scale Drawings
Let's explore scale drawings
8
Scale Drawings and Maps (optional)
Let's use scale drawings to solve problems
9
Creating Scale Drawings
Let's create our own scale drawings
10
Changing Scales in Scale Drawings
Let's explore different scale drawings of the same actual thing.
11
Scales without Units
Let's explore a different way to express scales
12
Units in Scale Drawings
Let's use different scales to describe the same drawing
Section C
Let’s Put It to Work
Section Narrative
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13
Draw It to Scale (optional)
Let's draw a floor plan