Scale Drawings

1
Scale Drawings
Matchbook Definitions MG 1.2 Construct and read
scale drawings MG 1.3 Use measures expressed as
rates. Purpose and Rationale Students will use
proportional analysis to determine and comprehend
how to read and create scale drawings.
Concept Map

• Prior Skills
• Set up and solve a proportion
• Solve one-step equations
• Measuring with a ruler
• Dimensional analysis

• Reading Scale
• Drawings
• Understand the scale
• Set up scale as ratio
• Measure length of side
• Set up proportion
• Solve for unknown

• Creating Scale
• Drawings
• Use given dimensions to draw
• additional rooms.
• Add other pictures to the
• drawing using the scale

2
Use an overhead projector to demonstrate scale
drawings and proportional size of objects.
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5
Introduce the reading of scale drawings by having
students determine the actual size of a room that
was drawn to scale. Students will then create
their own room additions using the same Scale
from the original room.
6
Bedroom
Scale 1 inch 4 feet Ratio
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Name_________________
Date________
Measurements for Scale Drawing
Dimensions of the bedroom Width
________ Length _______
Rooms Actual Size
Scale Size Kitchen 12 ft
by 16 ft _________ Living
Room 16 ft by 20 ft
_________ Second Bedroom 12 ft by 12 ft
_________ Bathroom
8 ft by 8 ft _________
Additional Drawings ____________________________
_______ ___________________________________ ______
_____________________________