Lesson 2 Share More Sandwiches

- Let’s use diagrams and expressions to represent division situations.

Warm-up Estimation Exploration: Name that Fraction

The large rectangle represents 1. What fraction of the large rectangle is shaded?

Rectangle. Less than 1 fourth shaded blue.

Record an estimate that is:

too low	about right	too high

Activity 1 One Sandwich

Jada’s family made sandwiches to share at a family celebration.

Complete the table to show much sandwich each person gets.
sandwiches being shared
number of people sharing sandwiches
amount of sandwich each person gets
division expression
$1$
$2$
$1$
$3$
$1$
$4$
$1$
$5$
Choose one row from the table and represent your thinking with a diagram.
What patterns do you notice in the table?

sandwiches being shared	number of people sharing sandwiches	amount of sandwich each person gets	division expression
$1$	$2$
$1$	$3$
$1$	$4$
$1$	$5$

Activity 2 Card Sort: Sandwich Match

Your teacher will give you a set of cards. Match each representation with a situation and expression. Some situations and expressions will have more than one matching representation.

Choose one set of matched cards.

2 diagrams of equal length. 5 equal parts. 1 part shaded. Total length, 1.

Show or explain how the diagram(s) and expression represent the number of sandwiches being shared.
Show or explain how the diagram(s) and expression represent the number of people sharing the sandwiches.
How much sandwich does each person get in the situation?

Practice Problem

Problem 1

4 hikers equally share 3 liters of water. How many liters of water does each hiker drink? Explain or show your reasoning.
4 hikers equally share 5 liters of water. How many liters of water does each hiker drink? Explain or show your reasoning.