UP:MA19.4.1
Vocabulary
- Multiplicative comparison
- Multiplier
- Equation
- Times as many
- Times as much
- Verbal statement
- Factor
- Product
- Quantity
- Multiple
- Scale factor
Knowledge
Students know:
- How to write an equation to represent a word situation.
- Which quantity is being multiplied and which factor is telling how many times.
- Varied language that describes multiplicative comparisons.
Skills
Students are able to:
- Interpret equations for multiplicative comparisons.
- Write equations for multiplicative comparisons.
Understanding
Students understand that:
- Multiplicative comparisons relate the size of two quantities and a scale factor.
- Factors in multiplication problems have different roles from each other in the context of comparison problems.
- Explanations and drawings show ways multiplicative comparisons are similar to and different from equal groups and arrays.
