This document contains a lesson on creating a scale drawing. It includes a floor plan drawing of a room with furniture and dimensions. It then shows calculations for finding the scale factor between the actual and drawn areas and using an equation to relate the actual and drawn areas. The document ends with closing questions about the purpose of scale drawings, challenges in creating the floor plan, and checking area calculations.

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Lesson 20: An Exercise in Creating a Scale Drawing
Homework: Begin Studying for Friday's
End of Module Assessment
Do Now: Lesson 19 Exit Ticket
Kitchen
Kitchen
Kitchen

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Kitchen
Kitchen
Kitchen

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S.90

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Desk Bean Bag
Smart
Baord
Group
Table
36 in
24 in
24 in
24 in
60 in
36 in
60 in

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336 in
312 in
60 in 36 in
Desk Bean Bag
Smart
Baord
Group
Table
36 in
24 in
24 in
24 in
60 in
36 in
60 in

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Desk Rug Bean Bag
Group
Table
2160 in2
576 in211520 in2
864 in2
104832 in2
Scale Factor =
Ratio of Areas =
Equation for areas:

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Closing Questions:
• Why are scale drawings used in
construction and design projects?
• What were the biggest challenges
you faced when creating your floor
plan? How did you overcome these
challenges?
• How can we double check our area
calculations?

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