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Homework:
Lesson 16 Problem Set
#1, 2, 3, 5
Aim: Relating Scale
Drawings to Ratios
and Rates
Oct. 9th
Mod 1: Lesson 16
Do Now: Review Homework Answers with Partner
HANDOUT OUT CRS 4
and Calculator letter

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1.)

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Intro: Can you Guess The Image

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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?

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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?

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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?

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Create scale drawings of your own modern nesng robots using the grids provided.
Exercise 1

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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 verces and fill in the table.

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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?

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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.

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Exit Ticket

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