Goals of the Unit

1. analyze comparison statements made about quantitative data
2. use ratios, fractions, differences, and percents to form comparison statements in a given situation
3. judge whether comparison statements make sense and are useful
4. see how forms of comparison statements are related
5. make judgments about which statements are most informative or best reflect a particular point of view
6. decide when the most informative comparison is the difference between two quantities and when it is a ratio between pairs of quantities
7. scale a ratio, rate, or fraction to make a larger or smaller object or population with the same relative characteristics as the original
8. represent related data in tables
9. look for patterns in tables that will allow predictions to be made beyond the tables
10. write an equation to represent the pattern in a table of related variables
11. apply proportional reasoning to solve for the unknown part when one part of two equal ratios is unknown
12. set up and solve proportions that arise in applications
13. recognize that constant growth in a table is related to proportional situations
14. connect a unit rate to the equation describing a situation

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Vocabulary

rate
ratio
proportion
unit rate
rate table