Rates & proportional relationships
Learn all about proportional relationships. How are they connected to ratios and rates? What do their graphs look like? What types of word problems can we solve with proportions?
This course contains 7 segments:
Rate problems with fractions
Learn how to compute rates associated with ratios of fractions or decimals. For example, if you run 6.5 meters in 1.5 seconds, what is your speed in meters per second?
Constant of proportionality
Identify the constant of proportionality (unit rate) in tables, graphs, equations, diagrams, and verbal descriptions of proportional relationships.
Compare and interpret constants of proportionality
Interpret the meaning of constants of proportionality and compare constants of proportionality in different formats.
Identifying proportional relationships
Learn how to tell whether two quantities are proportional by thinking about equivalent ratios and drawing graphs.
Graphs of proportional relationships
Interpret graphs of proportional relationships.
Writing & solving proportions
Learn how to write proportions and how to solve proportions.
Equations of proportional relationships
Learn how to write equations of proportional relationships in the form y=kx.
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| Rating | Not enough ratings |
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| Length | 7 segments |
| Starts | On Demand (Start anytime) |
| Cost | Free |
| From | Khan Academy |
| Download Videos | On all desktop and mobile devices |
| Language | English |
| Subjects | Mathematics |
| Tags | Math Math: 7th grade (U.S.) |
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| Rating | Not enough ratings |
|---|---|
| Length | 7 segments |
| Starts | On Demand (Start anytime) |
| Cost | Free |
| From | Khan Academy |
| Download Videos | On all desktop and mobile devices |
| Language | English |
| Subjects | Mathematics |
| Tags | Math Math: 7th grade (U.S.) |
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