The document outlines the lesson for Module 1, Lesson 19. It provides examples of using scale drawings to find the actual area of objects. Students are assigned homework problems and a quiz. The lesson teaches how to determine scale factor from a drawing and use it to calculate actual areas from scaled representations.

1. Module 1 Lesson 19.notebook
Module 1, Lesson 19
October 15, 2013
10/15/13
HW: Lesson 19 Problem Set #1 and 4
QUIZ 2 Friday, and
CRS 4 due tomorrow
Computing Actual Areas
from a Scale Drawing.
Do Now: Lesson 18 Exit Ticket
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2. Module 1 Lesson 19.notebook
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3. Module 1 Lesson 19.notebook
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Use the diagrams below to find the scale factor and then find
the area of each figure.
Example 1:
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4. Module 1 Lesson 19.notebook
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Use the diagrams below to find the scale factor and then find
the area of each figure.
Example 2:
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5. Module 1 Lesson 19.notebook
October 15, 2013
Use the diagrams below to find the scale factor and then find
the area of each figure.
Example 3:
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7. Module 1 Lesson 19.notebook
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Does the actual area you found reflect the results we found from
Examples 1–3? Explain how you know.
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8. Module 1 Lesson 19.notebook
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9. Module 1 Lesson 19.notebook
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10. Module 1 Lesson 19.notebook
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11. Module 1 Lesson 19.notebook
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12. Module 1 Lesson 19.notebook
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Closing:
1.) When given a scale drawing, how do we go about finding
the area of the actual object?
2.) Describe a situation where you might need to know the
area of an object given a scale drawing or scale model.
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13. Module 1 Lesson 19.notebook
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14. Module 1 Lesson 19.notebook
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