This is a great exercise in graphing proportional quantities to interpret the unit rate as the slope of a graph. It is not easy for learners to understand what a unit rate is. When it is presented as the slope of a linear line graph, your class can visually see how units increase or decrease along the line. Extend by having learners write the equation for the graph.

Concepts

linear equations, equations, proportions, slope, unit rates

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Additional Tags

unit rate, proportional relationship, slope, linear equation, math

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Pros

• Correlates well with the Common Core
• Can be applied to many situations

Cons

• None

Common Core

8.EE.B.5