Unit 3: Extending Operations to Fractions

Students learn that a fraction is a product of a whole number and a unit fraction, and learn to add and subtract fractions with like denominators, and to add and subtract tenths and hundredths.

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Concept

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What this unit covers

A Equal Groups of Fractions · 6 lessons

Goals

• Recognize that any fraction can be represented as a multiple of a unit fraction.
• Represent and solve problems involving multiplication of a fraction by a whole number.

Lessons

1. Equal Groups of Unit Fractions
2. Representations of Equal Groups of Fractions
3. Patterns in Multiplication
4. Equal Groups of Non-unit Fractions
5. Equivalent Multiplication Expressions
6. Problems with Equal Groups of Fractions

B Addition and Subtraction of Fractions · 8 lessons

Goals

• Create and analyze line plots that display measurement data in fractions of a unit.
• Represent and solve problems that involve the addition and subtraction of fractions and mixed numbers, including measurements presented in line plots.
• Use various strategies to add and subtract fractions and mixed numbers with like denominators.

Lessons

1. Fractions as Sums
2. Addition of Fractions
3. Differences of Fractions
4. The Numbers in Subtraction
5. Subtract Fractions Flexibly
6. Sums and Differences of Fractions
7. Fractional Measurements on Line Plots
8. Problems about Fractional Measurement Data

C Addition of Tenths and Hundredths · 6 lessons

Goals

• Reason about equivalence to add tenths and hundredths.
• Reason about equivalence to solve problems involving addition and subtraction of fractions and mixed numbers.

Lessons

1. An Assortment of Fractions
2. Add Tenths and Hundredths Together
3. Sums of Tenths and Hundredths
4. A Lot of Fractions to Add
5. Flexible with Fractions (Optional)
6. Sticky Notes (Optional)

Helpful to know first

The curriculum says this unit builds on these.

Grade 4 Math · Unit 2 Fraction Equivalence and Comparison

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