1) The document provides lesson materials on scale drawings, including examples of scale drawings that are reductions or enlargements of original images. It discusses using scale drawings of maps and geometric shapes. 2) Students are asked to identify corresponding points on scale drawings of maps and the coordinates of vertices for geometric shapes. They are also asked to determine if a constant of proportionality exists for scale drawings. 3) The lesson aims to help students understand how to relate scale drawings to ratios and rates by analyzing examples of scale drawings and their relationships to original images.

1. Module 4.5 Lesson 1 Scale Drawings.notebook
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Homework:
Pages S.5-S.7
#1, 2, 3, 5
Aim: Relating Scale
Drawings to Ratios
and Rates
2/2/17Mod 4.5: Lesson 1
CRS 11 due Wednesday 2/8
Do Now
During the 2015 NFL season, there were 275
concussions reported. That number decreased
by 11.3% for the 2016 NFL season.
Approximately how many concussions were
reported during the 2016 NFL season?

2. Module 4.5 Lesson 1 Scale Drawings.notebook
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3. Module 4.5 Lesson 1 Scale Drawings.notebook
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Intro: Can you Guess The Image
S.1

4. Module 4.5 Lesson 1 Scale Drawings.notebook
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Discussion Questions:
1.) What are possible uses for enlarged
drawing/pictures?
2.) What are the possible purposes of
reduced drawings/pictures?

5. Module 4.5 Lesson 1 Scale Drawings.notebook
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For the following problems, (a) is the actual picture and (b) is
the scale drawing. Is the scale drawing an enlargement or a
reduction of the actual picture?
S.1

6. Module 4.5 Lesson 1 Scale Drawings.notebook
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Derek's family took a day trip to a modern public garden. Derek
looked at his map of the park that was a reduction of the map
located at the garden entrance. The dots reprsent the placement
of rare plants. The diagram below is the top-view as Derek held
his map while looking at the posted map.
What are the corresponding points of the scale drawings of the maps?
Point A to _________ Point V to ____________ Point H to ____________ Point Y to ____________
Why doesn't V correspond to R since they
are both in the right hand corner?
S.2

7. Module 4.5 Lesson 1 Scale Drawings.notebook
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February 02, 2017
Celeste drew an outline of a building for a diagram she was
making and then drew a second one mimicking her original
drawing. State the coordinates of the vertices and fill in the table.
S.4

8. Module 4.5 Lesson 1 Scale Drawings.notebook
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9. Module 4.5 Lesson 1 Scale Drawings.notebook
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Luca drew and cut out small right triangle for a mosaic piece he
was creating for art class. His mother really took a liking and
asked if he could create a larger one for their living room and
Luca made a second template for his triangle pieces.
a. Does a constant of proportionality exist? If so, what is it? If not,
explain.
b. Is Luca‛s enlarged mosaic a scale drawing of the first image? Explain
why or why not.
S.4

10. Module 4.5 Lesson 1 Scale Drawings.notebook
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Create scale drawings of your own modern nesting robots using the grids provided.
Exercise 1 S.3

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S.5

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Closing Question:
How would you make a scale drawing of a
room in your house?

13. Module 4.5 Lesson 1 Scale Drawings.notebook
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Discussion Questions:
1.) Is the second image a reduction or
enlargement of the first image? How do
you know?
2.) Does a constant of proportionality
exist?
3.) Why is having a proportional
relationship important for scale drawings?