Instructional Activity# Perfect Purple Water

Lesson 4. Unit 2. Grade 6 Open Up Resources

Open Up Resources10 min(s)

This Instructional Activity is a part of the Lesson 4, Unit 2, Grade 6. Students revisit color mixing-this time by producing purple-colored water-to further understand equivalent ratios. They recall that doubling, tripling, or halving a recipe for colored water yields the same resulting color, and that equivalent ratios can represent different numbers of batches of the same recipe. As students work, monitor for students who use different representations to answer both questions, as well as students who come up with different ratios for the second question.