Lesson: Multiply Decimals by Whole Numbers
Lesson Objective
Lesson Plan
Aim/Objective: 
Key Points 

Multiply decimals (by decimals and by whole numbers) 
· Multiplying with decimals is like multiplying with whole numbers. · First, estimate. Think about what product will be about. · Next, multiply the digits. You can use the traditional method or lattice method. · Then, place the decimal appropriately. Use your estimation to help you 

Assessment: 

Jessica bought 4.75 pounds of bananas at $0.72 per pound. How much did the bananas cost?
1. Jeri practices running around the school track every day. Her best time is 2.1 minutes. It takes Denise one and a half times as long as Jeri. How long does it take Denise to run around the track?
A. 0.6 min B. 1.04 min C. 3.15 min D. 3.6 min 

Lesson 

Opening: · Students compute whole number problem: 24 x 63 1512 · Using digits from answer students predict answers to:
Intro to NM: · Walk through the steps of solving each problem · Model process of estimating prior to solving · Show the process using both the lattice and the traditional method · Model/Demonstrate how to place the decimal appropriately – using reasonableness (estimation) and rule
Guided Practice: · Students complete problems following steps and share answers
Independent Practice: · Students work on worksheet to practice multiplying with decimals 
Lesson Resources
CW Multiply Decimals by Whole Numbers Classwork 
1,305

HW Unit 5 Multiply Decimals by Whole Numbers 
695

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