. Grade 6, Illustrative icon

Perfect Purple Paint I

Illustrative MathematicsVaries

The goal of this task is to provide a good context for engaging students in reasoning about ratios. There are many approaches available, ranging from concrete (tape diagram) to more abstract (setting up an equation). The teacher may wish to have physical manipulatives on hand so that students can simulate mixing the paint: for example, blue and red interlocking cubes (or tiles) could be used to model the cups of blue and red paint. Colored pencils (red and blue) should also be made available, either for making strip diagrams or for students to draw their own model of the mixed paint.

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