Unit 2, Lesson 4
Color Mixtures
Grade 6
4.1
Warm-up
Here is a picture of two containers of colored water.
- What do you notice about the colored water? Make 1–2 observations.
- What would happen if we mixed the blue water and yellow water together?
- What would happen if we mixed more blue water with the same amount of yellow water?
Student Lesson Summary
When mixing colors, doubling or tripling the amount of each color will create the same shade of the mixed color. In fact, you can always multiply the amount of each color by the same number to create a different amount of the same mixed color.
For example, a batch of dark orange paint uses 4 ml of red paint and 2 ml of yellow paint.
- To make two batches of dark orange paint, we can mix 8 ml of red paint with 4 ml of yellow paint.
- To make three batches of dark orange paint, we can mix 12 ml of red paint with 6 ml of yellow paint.
Here is a diagram that represents 1, 2, and 3 batches of this recipe.
We say that the ratios , , and are equivalent because they describe the same color mixture in different numbers of batches, and they make the same shade of orange.
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