Lesson 14
Represent Division of Whole Numbers by Unit Fractions
Lesson Purpose
The purpose of this lesson is for students to solve problems involving division of a unit fraction by a whole number and write equations to represent them.
Lesson Narrative
In the previous lesson, students solved problems involving division of a whole number by a unit fraction. In this lesson, students continue to find quotients of a whole number by a unit fraction. In this lesson, however, they find the value of expressions without being provided a tape diagram. The numbers are not too large, however, so they may still draw a diagram if it is helpful. In the second activity, students look simultaneously at expressions involving quotients of a whole number by a fraction and quotients of a fraction by a whole number.
 Action and Expression
Learning Goals
Teacher Facing
 Divide a whole number by a unit fraction.
 Relate diagrams, situations and expressions that represent division of a whole number by a unit fraction.
Student Facing
 Let's solve problems involving division of a unit fraction by a whole number.
Required Preparation
CCSS Standards
Addressing
Lesson Timeline
Warmup  10 min 
Activity 1  20 min 
Activity 2  15 min 
Lesson Synthesis  10 min 
Cooldown  5 min 
Teacher Reflection Questions
Suggested Centers
 Compare (1–5), Stage 8: Divide Fractions and Whole Numbers (Addressing)
 Rolling for Fractions (3–5), Stage 5: Divide Unit Fractions and Whole Numbers (Addressing)
Print Formatted Materials
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