MA19.6.2
Use unit rates to represent and describe ratio relationships.
Use unit rates to represent and describe ratio relationships.
Unpacked Content
UP:MA19.6.2
Vocabulary
- Unit rate
- Ratio
- Rate language
- Per
- Quantity
- Measures
- Attributes
Knowledge
Students know:
- Characteristics of multiplicative comparison situations.
- Rate and ratio language.
- Techniques for determining unit rates.
- To use reasoning to find unit rates instead of a rule or using algorithms such as cross-products.
Skills
Students are able to:
- Explain relationships between ratios and the related unit rates.
- Use unit rates to name the amount of either quantity in terms of the other quantity flexibly.
- Represent contextual relationships as ratios.
Understanding
Students understand that:
- A unit rate is a ratio (a:b) of two measurements in which b is one.
- A unit rate expresses a ratio as part-to-one or one unit of another quantity.
