# Comparing and scaling math book

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## Comparing and scaling math project

Ratios, proportions, rates, scaling ratios and rates, unit rate, constant rate of proportionality, solving proportions, percents, discounts, mark-ups. CMP2’s Comparing and Scaling has been altered in response to several forces, some internal and some external. In CMP3 Comparing and.

## Presentation on theme: "Pre-Algebra Comparing and Scaling 2.3"— Presentation transcript:

Convert currency. Add to Basket. Book Description Pearson Education. Condition: Very Good. No excessive markings and minimal highlighting.

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Ratios, proportions, rates, scaling ratios and rates, unit rate, constant rate of proportionality, solving proportions, percents, discounts, mark-ups. Significant Changes Due to the CCSSM introduction of ratio and rates in 6 th grade, the content of this unit has been combined into three investigation rather than 4. The internal motivation for change was a desire to more strongly connect to, and to more completely develop, the ideas and strategies initiated in CMP3 Stretching and Shrinking. In similar figures, internal ratios, such as length: width, and external ratios, such as side length X: corresponding side length Y, are constant. When students find a missing length in Stretching and Shrinking , they are solving a proportion; they may use a scale factor rather than set up a proportion, but the proportional reasoning is the same. By the end of CMP3 Stretching and Shrinking students will have a method of scaling a ratio up or down to find a missing quantity or by using equivalent ratios, which is an important strategy for solving any proportion. Learning to choose the scale factor efficiently, in similarity and other situations, is a refinement of this strategy.