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