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Module 1 - 7th grade
ratios, equivalent ratios, unit rates, proportions
Term | Definition |
---|---|
ratio | A comparison between two quantities |
rate | A comparison between two quantities in a given context |
equivalent ratios | Two or more ratios that have the same value when divided. |
unit rate | an amount per 1 unit |
Find the unit rate : 420 pages in 6 hours | 70 pages per hour |
Rate or Ratio? Shelby drove 360 miles in 6 hours | rate |
Rate or Ratio? 5 : 4 | ratio |
K | constant of proportionality |
What does it mean to be proportional? | All the given rates have the same ratio value. |
How do I find the constant of proportionality? | y/x |
What is the proportional equation we use? | y = kx |
How do I find the unit rate? | y/x |
Example of Unit Rate | 60 miles per 1 hour |
Example Rate | $8.99 for 3 bags of chips |
Units of Measure | The variables being compared in the given problem. |