# ﻿Fractional Lengths

Warmup

Activity #1

Exploring Fractional Lengths.

For this exercise,  • Use the applet below to answer the questions that follow.

(1). How many centimeters long is 3 inches? Show your reasoning.

(2.) What fraction of an inch is 1 centimeter? Show your reasoning.

Activity #2

Write Multiplication & Division Equations.

The Food and Drug Administration (FDA) recommends a certain amount of nutrient intake per day called the “daily value.” Food labels usually show percentages of the daily values for several different nutrients—calcium, iron, vitamins, etc. • Read the information below and use the applet notebook to answer the questions.

The Food and Drug Administration (FDA) recommends a certain amount of nutrient intake per day called the “daily value.” Food labels usually show percentages of the daily values for several different nutrients—calcium, iron, vitamins, etc. Consider the problem: In cup of oatmeal, there is of the recommended daily value of iron.

(1.) What fraction of the daily recommended value of iron is in 1 cup of oatmeal?

(2.) Write a multiplication equation and a division equation to represent the question using the space below.

Activity #3

Draw Tape Diagrams to Solve Fraction Problems. • Draw a tape diagram to represent and answer the question. Use the graph paper below if needed.

(1.) What fraction of is ?

• Draw a tape diagram to show your reasoning. Use graph paper below, if needed.

(2). Noah says, “There are groups of in 2.” Do you agree with him?

Challenge #1

A zookeeper is . A young giraffe in his care is .

(1.) What fraction of the giraffe’s height is the zookeeper’s height?

(2.) How many times as tall as the zookeeper is the giraffe?

Challenge #2

The photo below shows a situation that involves fractions. Complete the sentences. Be prepared to explain your reasoning. (1.) The length of the long tube is about ______ times the length of a short tube.

(2.) The length of a short tube is about ______ times the length of the long tube.

(3.) If the length of the long paper roll is inches, what is the length of each short paper roll?

Challenge #3

Quiz Time