Ratio Target Match: Select equivalent ratios
Ratio Target Match: Choose a ratio equivalent to the target ratio.
| Name | Ratio Target Match |
|---|---|
| Catalog grade suggestions | Grade 5, Grade 6 |
| Actual task | Choose a ratio equivalent to the target ratio. |
| Practice objective | Practice the following task: Choose a ratio equivalent to the target ratio. |
Grades are catalog suggestions. Curriculum entries are references, not certification. Choose a practice length that fits your session.
Task and scope
Choose a ratio equivalent to the target ratio.
Check readiness and task range
This is a ratio-equivalence task. It does not ask students to shoot an answer to a division equation or compare a ratio as a percentage.
Practice in this activity
- Choose a ratio equivalent to the target ratio.
- This is a ratio-equivalence task. It does not ask students to shoot an answer to a division equation or compare a ratio as a percentage.
Controls and steps
- Read the target ratio.
- Simplify a candidate ratio or compare its common scale factor.
- Select a candidate equivalent to the target and continue with the feedback.
Teaching discussion
Use 2:3 and 4:6 as a demonstration. Ask why multiplying both terms by two preserves the ratio.
Questions about the task
Q: Is matching only the first term enough?
A: No. Both terms must have the same scale factor. For example, 4:6 matches 2:3, but 4:5 does not.