# 4.NF.B.4b Multiply Fractions on a Number Line

## 4.NF.B.4b Multiply Fractions on a Number Line

**Evidence Statement 4.C.7-4 Base explanations /reasoning on a number line diagram ( whether provided in the prompt or constructed by the student in their response)**

### Alisa's Walk

Alisa’s family is taking a trip to the beach.

Their house is ¼ mile from the ocean.

If Alisa walks to and from the beach every day, how far will she walk over 5 days?

Explain how to find the total distance Alisa walked using the number line.

Enter your answer and explanation in the space provided.

A number line 0 to 5 that is partitioned into eighths.

### Student Copy

### Scoring Rubric

Score | Description |

3 | Student responses includes the following 3 elements: Reasoning Component= 2 points Valid explanation of how to find 2/4 using the number line Valid explanation of how to 5 x 2/4 using the number line Computation Component= 1 point Correct product - 2 1/2 miles or equivalent fraction |

2 | Student response includes 2 of the 3 elements. |

1 | Student response includes 1 of the 3 elements |

0 | Student response is incorrect or invalid. |