Students explore percentages of quantities other than 100 and 1 in a variety of contexts. All of the tasks use comparison contexts—describing one quantity relative to another quantity—rather than part-whole contexts.

Students can continue to use the double number lines as a reasoning tool. The equal intervals on the double number line are useful for reasoning about percentages. In addition, using the same representation that was used for other ratio and rate reasoning reinforces the idea of a percentage as a rate per 100 (MP7). Students should also be encouraged to use other strategies to solve percentage problems.

Grade 6, Episode 7: Unit 3, Lesson 11 | Illustrative Math