Ontario · Grade 9 (MTH1W, de-streamed)
MTH1W.B3.5
Grade 9 de-streamed — Solve problems involving rates, percentages and proportions in various contexts.
The skill that covers it
What a student should be able to do
- Write and simplify a ratio, and find an equivalent ratio.
- Compute a unit rate and use it to compare deals.
- Solve a proportion for an unknown value.
- Use proportional reasoning for scaling, recipes and maps.