What percent of the mixture is juice? Pairs use their knowledge of proportions to determine what percent a mixture is juice given the percent of juice in the components. Pupils use the procedure learned with the juice mixture problem to solve other mixture problems with percents. 

Concepts

percent problems, mixtures, proportional reasoning, proportions, percent proportion, linear equations, linear equations writing, solving equations, solving for 1 variable, algebraic equations

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Additional Tags

math

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Instructional Ideas

• Use 10 connecting blocks with one color to be the water and one color to be juice to represent the gallons of liquid in the opening exercises
• Make mixtures with components that can be counted

Classroom Considerations

• The class needs to know customary measurements of volume
• 18th part in a unit of 20 segments

Pros

• The answer key shows the steps in solving the equations
• Includes scaffolding suggestions

Cons

• None

Common Core

7.RP.A.2.a 7.RP.A.2.c 7.RP.A.3 MP1 MP2 MP7