In this task where two saltwater solutions are compared, 8th graders must find equivalent ratios, write an equation that works for both solutions, draw the equation's graph, and interpret the slope as a unit rate. Aligns with 8.EE.B.5.

This lesson allows students to practice writing and solving rates by conducting an experiment to find the best tasting Kool-Aid mixture. It gives an assessment and ideas for remediation, extension as well as ways to manage behavior...

A performance task where students fill in the missing values on a table, plot the corresponding points in the coordinate plane, and find the two unit rates that are associated with this proportional relationship.