Lesson 7

Multiplication Strategies for Larger Numbers

Est. Class Sessions: 2
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Mathematical Standards

4.NBT.A
Generalize place value understanding for multi-digit whole numbers. (4.NBT.A.1, 4.NBT.A.3)
4.NBT.B
Use place value understanding and properties of operations to perform multi-digit arithmetic. (4.NBT.B.4, 4.NBT.B.5)
4.OA.A
Use the four operations with whole numbers to solve problems. (4.OA.A.3)

Standards for Mathematical Practice

MP1.
Make sense of problems and persevere in solving them.
MP2.
Reason quantitatively.
MP3.
Construct viable arguments and critique the reasoning of others.
MP6.
Attend to precision.
MP7.
Look for and make use of structure.

Students construct a menu of strategies and methods for solving multiplication problems involving larger numbers. This menu includes paper-and-pencil methods as well as mental math strategies. Students use this menu to practice these strategies and to develop connections between these strategies and methods.

Content in this Lesson

  • Multiplying numbers that are multiples of ten [E2].
  • Multiplying multidigit numbers by one-digit numbers using mental math strategies and paper-and-pencil methods (expanded form, all-partials, compact) [E7].
  • Using place value concepts and mathematical properties in operations with multidigit numbers [E3].
  • Showing connections between models and strategies for multiplication [E4].
  • Estimating products [E6].
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Materials for Students

Daily Practice and Problems Lesson Homework Assessment

Student Books

 Student Guide
Student Activity Book

Teacher Resources

 Teacher Guide - digital

Materials for the Teacher

Display of Three Paper-and-Pencil Methods Master (Teacher Guide)
Display of Multiplication Strategies Menu for Larger Numbers (Student Activity Book) Page 233, optional
Display of Question 23 (Student Guide) Page 288
Unit 7 Assessment Record
chart paper

Assessment in this Lesson

Assessment Expectation Assessed

Multiplication Strategies for Larger Numbers
Check-In: Question 30
Student Guide
Page 289
E3.
Demonstrate understanding of the place value concepts and mathematical properties involved in operations with multidigit numbers (e.g., use the distributive property to multiply).
E4.
Show connections between models and strategies for multiplication (e.g., demonstrate partial products using a rectangle model for multiplication).

Making Connections in Multiplication
Assessment Master with
Feedback Box
Teacher Guide - digital
E3.
Demonstrate understanding of the place value concepts and mathematical properties involved in operations with multidigit numbers (e.g., use the distributive property to multiply).
E4.
Show connections between models and strategies for multiplication (e.g., demonstrate partial products using a rectangle model for multiplication).
E6.
Estimate products.
E7.
Multiply multidigit numbers by 1-digit numbers using mental math strategies and paper-and-pencil methods (e.g., expanded form, all-partials, compact).