Just how much spray paint does a mural require? Using proportions, graffiti artists determine the amount of supplies needed to complete a mural. The creative resource shows how to determine the area of composite figures and uses that calculated area to determine the amount of paint needed. Pupils design a simple mural made from composite shapes and calculate how much paint they must have to complete their mural.

Concepts

scale drawings, scale factors, scale, painting, painting techniques, area, area of parallelograms, area of rectangles, composite figures

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Additional Tags

math

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Instructional Ideas

• Find some large walls at school and have the class create a scale drawing of a mural that could be painted there and determine the amount of supplies needed

Classroom Considerations

• Individuals should know how to calculate the area of parallelograms
• Assumes pupils are familiar with determining the area of composite shapes
• One installment of the Math at the Core MS: Ratios
  

Pros

• Provides questions to ask during different points of the video
• Includes a list of learning outcomes students master after the activity
  

Cons

• None

Common Core

7.RP.A.3 7.G.B.6