## 5.NF.B.4

## Apply and extend previous understandings of multiplication to multiply a fraction or whole number by a fraction.

15 Lesson(s)

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#### Developing understanding of the multiplication of fractions and of division of fractions is a Critical Area in 5th grade.

#### How can you create the smallest product in the Multiplying Game? Students apply what they know about multiplying fractions to the Multiplying Game.

Big Idea:

#### Students practice multiplying fractions using models and mathematical procedures.

#### How can we use diagrams to multiply mixed numbers? How can we multiply mixed numbers without using a diagram? Students apply what they know about multiplying fractions to multiplying with mixed numbers.

#### What does it mean when you multiply fractions? How can you multiply fractions without drawing a diagram? Students build on their skills for multiplying fractions and they work to develop an algorithm.

#### What do students already know about fractions? What gaps do students have in their understanding? Students take the fractions pretest in order to inform instruction.

#### Riley has only completed one-third of her part of the mural. How can you find 1/3 of 1/2? Students extend their understanding of multiplication to fractions and area models.

#### Students will use their understanding of multiplying fractions and apply it to dividing fractions which is a key component in common core.

Big Idea:

#### 0.25 is the same as 25/100. And ½ is the same as 5/10 is the same as .5

#### Students need to concrete models be able to see the exchange of fractions with unlike denominators.

#### Students continue to work on problem based tasks that involve multiplying fractions by whole numbers.

#### Students apply skills they have learned and practiced to solve a real life problem about our local "save our salmon" project.

Big Idea:

#### Students practice multiplying mixed numbers for the purpose of finding area.

#### Students have an opportunity to show what they know about fractions in this skill based mixed review activity.

Big Idea: