Unit 6: Using Models to Multiply and Divide of Whole Numbers, Decimals, and Fractions

Unit Overview Summary

Unit Overview Video

Unit Vocabulary

Unit Extra Practice

(Coming Soon)

Resources for Families

Lesson

Standards

Learning Targets

Additional Resources

Lesson 1: Connect Models, Strategies & Algorithm for Multiplication

NC.5.NBT.5

5th Grade Unpacking Document

I can use my understanding of multiplication strategies and models to help make sense of the standard algorithm for multiplication.

- Video Links
  - Whole Number Multiplication with Area Models

Lesson 2: Practice the Standard Algorithm

NC.5.NBT.5

5th Grade Unpacking Document

I can apply understandings of models and strategies for multiplication, including the standard algorithm, to find products.

- Video Links
  - Whole Number Multiplication with Area Models
  - Math Antics: Multi-Digit Multiplication Video
- Technology Links
  - Multiplication 2 digit X 2 digit Practice

Lesson 3: More Multiplication Practice

NC.5.NBT.5

NC.5.OA.2

5th Grade Unpacking Document

I can apply understandings of models and strategies for multiplication, including the standard algorithm.

- Video Links
  - Whole Number Multiplication with Area Models
- Technology Links
  - Drag & Drop Multiplication

Lesson 4: Interpret Remainders

NC.5.NBT.6

5th Grade Unpacking Document

I can use models and strategies based on place value to divide multi-digit whole numbers and explore ways to interpret remainders.

- Video Links
  - Whole Number Division w/ Rectangle Model

Lesson 5: Division Practice

NC.5.NBT.6

5th Grade Unpacking Document

I can use models and strategies based on place value to divide multi-digit whole numbers and explore ways to interpret remainders.

- Video Links
  - Whole Number Division w/ Rectangle Model

Lesson 6: Additional Division Practice

NC.5.NBT.6

5th Grade Unpacking Document

I can make connections between the standard algorithm for division and the strategies I've been using to divide so far.

- Video Links
  - Whole Number Division w/ Rectangle Model
  - Khan Academy Division Video

Lesson 7: Mental Strategies for Division

NC.5.NBT.6

5th Grade Unpacking Document

I can mental strategies to divide whole numbers with up to four-digit dividends and two-digit divisors.

- Video Links
  - Whole Number Division w/ Rectangle Model
  - Khan Academy Division Video

Lesson 8: Here's the Remainders, What's the Story?

NC.5.NBT.6

5th Grade Unpacking Document

I can create story context that yield different remainder interpretations from the same expression.

- Video Links
  - Whole Number Division w/ Rectangle Model
  - Khan Academy Division Video

Lesson 9: Solve Real-World Problems

NC.5.NBT.5

NC.5.NBT.6

5th Grade Unpacking Document

I can interpret word problems to determine the operation (s) that should be used to solve given word problems.

- Video Links
  - Whole Number Division w/ Rectangle Model
  - Khan Academy Division Video

Lesson 10: Decimal Multipliers

NC.5.NBT.5

NC.5.NBT.7

5th Grade Unpacking Document

I can investigate patterns when multiplying by whole numbers and decimal multipliers.

- Technology Links
  - Multiply Decimals by Factors of 10

Lesson 11: Multiplying Decimals Using Models

NC.5.NBT.7

5th Grade Unpacking Document

I can multiply a decimal number by a whole number using base-ten pieces and base-ten grids and use estimation strategies to assess the resonableness of answers.

- Video Links
  - Decimal X Whole Number w/ Grids
  - Decimal X Whole Number w/ Grids Video 2
- Virtual Manipulatives
  - Interactive Base Ten Blocks

Lesson 12: Multiply Decimals Using Number Lines

NC.5.NBT.7

5th Grade Unpacking Document

I can multiply a decimal number by a whole number using number lines and use estimation strategies to assess the reasonableness of answers.

- Video Links
  - Decimal X Whole with Number Lines
  - Decimal X Whole with Number Lines Video 2
- Virtual Manipulatives
  - Interactive Number Line

Lesson 13: Multiplying Decimals Tic-Tac-Toe

NC.5.NBT.7

5th Grade Unpacking Document

I can interpret word problems and multiply a decimal number by a whole number using a variety of strategies.
I can use estimation strategies to assess the reasonableness of answers.

- Video Links
- Virtual Manipulatives
  - Interactive Base Ten Blocks
  - Interactive Number Line

Lesson 14: Multiply Decimals by Decimals

NC.5.NBT.7

5th Grade Unpacking Document

I can use an area model to multiply two decimal numbers.

- Video Links
  - Wake County Decimal X Decimal w/ Area Model
- Technology Links
  - Area Model Simulation

Lesson 15: Multiply by Hundredths

NC.5.NBT.7

5th Grade Unpacking Document

I can find products when multiplying by hundredths.

- Video Links
  - Wake County Decimal X Decimal w/ Area Model
- Technology Links
  - Hoop Shoot Game
  - Area Model Simulation

Lesson 16: Multiply Decimals - Real-World Applications

NC.5.NBT.7

5th Grade Unpacking Document

I can apply what I've learned about multiplying decimals to solve a variety of word problems.

- Video Links
  - Wake County Decimal X Decimal w/ Area Model
- Technology Links
  - Multiplying Decimals & Whole Numbers - Word Problems
  - Area Model Simulation

Lesson 17: Making Sense of Multiplying Decimals

NC.5.NBT.1

NC.5.NBT.7

5th Grade Unpacking Document

I can use reasoning about the size of numbers and my knowledge of multiplying and dividing by multiples of ten to estimate and solve multiplication of decimal numbers.