Unit Fraction

Write an equation that matches the tape diagram.

18

x

x

x

Day 3

Answer: 18 ÷ 3 = x

Student’s Turn: Identify the value of a digit

The Number: 30,140

The value of the digit 4 is (expanded notation) or (expanded form)

Day 3

The value of the digit ______ is

Lesson Objective

Demonstration of

Learning

I am learning to how to explain the
meaning of a unit fraction and compose
and decompose fractions into unit fractions.

3.3C and 3.3D

Given 3 problems, I will explain the
meaning of a unit fraction and compose
and decompose fractions into unit fractions
with 100% accuracy.

Academic Vocabulary

Representing Fractions

● compose
● decompose
● denominator
● equal parts
● fraction bar
● numerator
● part
● set

● strip diagram
● unit fraction
● whole unit

Unit Fractions

Draw and label each model with a unit fraction.

Draw the set of triangles and write an equation to represent the
shaded triangle as a sum of unit fractions.

Journal

Y’all Do

The students labeled the shaded sections with the same fraction.

●

Can the same fraction represent both of the shaded sections?
Why or why not?

●

Which rectangle is a model of a unit fraction? What is the unit
fraction?

Two students each drew a rectangle. They divided each
rectangle into three parts and shaded a section as shown.

A B

Closure

●

What is a unit fraction?

●

Can all fractions be represented
with unit fractions? Why or why
not?

●

How can the model shown be
decomposed into unit fractions?