Let's paint the town equal parts yellow and violet, or simply brown. Pupils calculate the amount of blue and red paint needed to make six quarts of brown paint. Individuals then explain how they determined the percentage of the brown paint that is red. 

Concepts

converting fractions to percents, percents, ratios, equivalent ratios, multiplication fractions, mixing colors

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Additional Tags

math

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Instructional Ideas

• Encourage struggling pupils to use a strip model
• Provide a mini-lesson on the meaning for repeating decimals within a percentage

Classroom Considerations

• The class should understand part-part and part-whole relationships

Pros

• Resource highlights areas where pupils are successful or struggle
• The results of national normed assessment for the item show the frequency of the scores

Cons

• None

Common Core

7.RP.A.1 7.RP.A.3 MP2 MP7