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MA19.4.16
Apply and extend previous understandings of multiplication to multiply a whole number times a fraction.

Apply and extend previous understandings of multiplication to multiply a whole number times a fraction.

### Unpacked Content

## UP:MA19.4.16

### Vocabulary

- Whole number
- Fraction
- Non-unit fraction
- Unit fraction
- Fraction less than one
- Fraction greater than one
- Visual fraction model
- Equation
- Decompose
- Recompose
- Compose

### Knowledge

- Models or equations to represent multiplication situations.
- The fraction a/b is equivalent to the unit fraction 1/b being iterated or "copied" the number of times indicated by the numerator, a.

### Skills

- Model and explain how a non-unit fraction can be expressed as multiplication.
- Multiply a whole number times any fraction less than one.
- Solve word problems involving a whole number times a fraction using a visual fraction model and equation to represent the problem.

### Understanding

- Previous work involving multiplication with whole numbers can be extended to fractions in showing multiplication as putting together equal-sized fractional groups.
- Problem solving situations involving multiplication of a whole number times a fraction can be solved using a variety of strategies, models, and representations.