Curriculum Library

Grade 5 Unit 2: Multiplication with Decimals

Key Concept: A digit in one place represents ten times more than it represents in the place to its right.

Unit Launcher    
View Sarah's Smoothies: Discussion Guide and KWL Chart

Lesson Sequences

5.2-1-1 Multiply Single Unit Decimals by 10, 100, or 1000  |
View Lesson Opener Talk About (5-10 min)
View Guided Lesson Students will use models to multiply single unit decimals written to the hundredths by 10, 100, or 1000. (12 - 20 min)
View Lesson Closer Explain and Solve (5-8 min)
5.2-1-2 Multiply 2 Unit Decimals by 10, 100, or 1000  |
View Lesson Opener Think, Pair, Share (5-10 min)
View Guided Lesson Students will use models to multiply two-unit decimals by 10, 100, and 1000. (12 - 20 min)
View Lesson Closer Agree/Disagree (5-8 min)
5.2-1-3 Estimate Decimal Products  |
View Lesson Opener Think, Pair, Share (5-10 min)
View Guided Lesson Students will round decimals on a number line and then multiply one and two-unit decimals by 10, 100, and 1000. (12 - 20 min)
View Lesson Closer Agree/Disagree (5-8 min)
Real World Investigation Part 1    
View Sarah's Smoothies: Sarah's Data
Key Concept: Multiplication with a decimal is a way to find the value of groups of decimals.

Lesson Sequences

5.2-2-1 Multiply Decimal Fractions by Whole Numbers  |
Lesson Plan
View Lesson Opener Talk-About (5-10 min)
View Guided Lesson Students will use a paraphrase tool and a number line model to multiply a fraction by a whole number. (12 - 20 min)
View Lesson Closer Explain and Solve (5-8 min)
5.2-2-2 Multiply Tenths by a Single Digit Whole Number  |
Lesson Plan
View Lesson Opener Walk-About (5-10 min)
View Guided Lesson Students will use a number line model to multiply a tenth by a single digit whole number. (12 - 20 min)
View Lesson Closer Explain and Solve (5-8 min)
5.2-2-3 Multiply Hundredths by a Single Digit Whole Number  |
Lesson Plan
View Lesson Opener Hands-On (5-10 min)
View Guided Lesson Students will use the number line and open array models to multiply hundredths by a single digit whole number. (12 - 20 min)
View Lesson Closer Agree/Disagree (5-8 min)
5.2-2-4 Multiply Tenths and Hundredths by Whole Numbers  |
Lesson Plan
View Lesson Opener Think-Pair-Share (5-10 min)
View Guided Lesson Students will use partial products, the open array, and the standard equation to multiply tenths and hundredths by whole numbers. (12 - 20 min)
View Lesson Closer Agree-Disagree (5-8 min)
Real World Investigation Part 2    
View Sarah's Smoothies: Create Some Data
Key Concept: When multiplying two numbers, the digits in the product are the same no matter where the decimal point is placed.

Lesson Sequences

5.2-3-1 Multiply Decimal Fractions  |
Lesson Plan
View Lesson Opener Talk-About (5-10 min)
View Guided Lesson Students will use a paraphrase tool and an area model to multiply a fraction by a fraction. (12 - 20 min)
View Lesson Closer Agree-Disagree (5-8 min)
5.2-3-2 Multiply Tenths by Tenths  |
Lesson Plan
View Lesson Opener Think-Pair-Share (5-10 min)
View Guided Lesson Students will use models to multiply tenths by tenths.
(12-20 min)
View Lesson Closer Agree/Disagree (5-8 min)
5.2-3-3 Multiply Ones and Tenths by Tenths  |
Lesson Plan
View Lesson Opener Think, Pair, Share (5-10 min)
View Guided Lesson Students will use partial products in order to multiply ones and tenths by tenths. (12-20 min)
View Lesson Closer Explain and Solve (5-8 min)
5.2-3-4 Multiply Ones and Tenths by Ones and Tenths  |
Lesson Plan
View Lesson Opener Hands-On (5-10 min)
View Guided Lesson Students will use the partial products model to multiply ones and tenths by ones and tenths. (12-20 min)
View Lesson Closer Agree/Disagree (5-8 min)
Real World Investigation Part 3    
View Your Smoothies: Your Data