In the Comparing Quantities unit, we looked at many situations that involved ratios. Recall that a ratio is a comparison between two quantities. We looked at many comparison situations such as Packaging Green and White Cupcakes, Walking Backwards Race, and Sharing Smoothie Bars.
The ratio of green cupcakes to white cupcakes is expressed as:
In the Stretching and Shrinking unit, we also wrote the ratio 2 to 3 as ⅔. This is called the fraction form of a ratio.
How is this fraction form of a ratio the same as or different from fractions?
We also know that two ratios are equivalent if they express the same comparisons. For example, the ratio of green cupcakes to white cupcakes is the same in the following packages:
What patterns do you see among the comparisons?
In this Unit we will learn more about ratios and reasoning with ratios.
" + "Investigation 1
Proportional Reasoning Using Ratio Comparisons
In the Comparing Quantities unit, we looked at many situations that involved ratios. Recall that a ratio is a comparison between two quantities. We looked at many comparison situations such as Packaging Green and White Cupcakes, Walking Backwards Race, and Sharing Smoothie Bars.
The ratio of green cupcakes to white cupcakes is expressed as:
In the Stretching and Shrinking unit, we also wrote the ratio 2 to 3 as ⅔. This is called the fraction form of a ratio.
How is this fraction form of a ratio the same as or different from fractions?
We also know that two ratios are equivalent if they express the same comparisons. For example, the ratio of green cupcakes to white cupcakes is the same in the following packages:
What patterns do you see among the comparisons?
In this Unit we will learn more about ratios and reasoning with ratios.
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