5th Grade 
​ Multiplying and Dividing Fractions

  Common Core Standards:

• Explaining why multiplying a given number by a fraction greater than 1 results in a product greater than the given number (recognizing multiplication by whole numbers greater than 1 as a familiar case); explaining why multiplying a given number by a fraction less than 1 results in a product smaller than the given number; and relating the principle of fraction equivalence a/b = (n x a)/(nb) to the effect of multiplying a/b by 1
• Solve real world problems involving multiplication of fractions and mixed numbers, e.g., by using visual fraction models or equations to represent the problem

Curricular Resources:
Multiplying and Dividing Fractions by Marilyn Burns
Investigations Common Core Supplemental Book

Week 1:
Day 1: Chapter One-Whole Number Multiplication

Day 2: Introducing Multiplication of Fractions 

Day 3: Session 4A.1-Multiplying a Whole Number by a Fraction
Blackline Masters
Fraction Bars- C20

Day 4: Session 4A.2- Multiplying Whole Numbers by Fractions and Mixed Numbers
Student Activity Book pages 74-76

Day 5: Session 4A.3- Multiplying Fractions or Mixed Numbers
*Continue using fraction bars.

Day 6: Session 4A.4- Multiplying Fractions by Fractions
*Continue using Fraction Bars
* Prepare a poster entitled "How Much of the Bar is Striped?"

Day 7: Session 4A.5- A Rule for Multiplying Fractions

*Continue using the poster, "How Much of the Bar is Striped?"
*Students will develop a conjecture about multiplying fractions.

Day 8: Session 4A.6- Using Arrays for Multiplying Fractions
*Student Activity Book pages 86-89

Day 9: Session 4A.7- Assessment: Multiplying Fractions and Multiplying Mixed Numbers

Blackline Masters
Assessment: Multiplication with Fractions, Mixed Numbers, and Whole Numbers

Day 10: Session 4A.8- Dividing a Whole Number by a Fraction

Day 11: Session 4A.9- Dividing a Fraction by a Whole Number

Day 11: Assessment: Dividing with Fractions