Lesson 6

Using Multiplication Strategies

Est. Class Sessions: 2
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Mathematics Standards

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.NBT.B.7)
4.OA.A
Use the four operations with whole numbers to solve problems. (4.OA.A.3)
4.OA.B
Gain familiarity with factors and multiples. (4.OA.B.4)

Standards for Mathematical Practice

MP1.
Make sense of problems and persevere in solving them.
MP2.
Reason quantitatively.
MP7.
Look for and make use of structure.

Students review multiplication of one-digit by two-digit numbers and extend their understanding to problems involving multidigit numbers. They explore using mental math and other strategies. They review paper-and-pencil methods (using rectangles, expanded form, all-partials, and compact) and gain experience choosing strategies and methods appropriate for a given problem.

Content in this Lesson

  • Demonstrating understanding of the place value concepts and mathematical properties involved in multidigit multiplication problems [E3].
  • Showing connections between models and strategies for multiplication [E4].
  • Estimating products [E6].
  • Multiplying multidigit numbers by 1-digit numbers using mental math and paper-and-pencil methods [E7].
  • Choosing appropriately from among estimation, mental math strategies, and paper-and-pencil methods to multiply whole numbers [E8].
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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 Multiplication Strategies Menu (Student Activity Book) Page 229 or (Student Guide) Reference
Display of Half-Centimeter Grid Paper (Student Activity Book) Page 231
Unit 7 Assessment Record

Assessment in this Lesson

Assessment Expectation Assessed
Using Multiplication Strategies
Check-In: Questions 1–3
Student Guide
Page 280
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).
Using Multiplication Strategies
Check-In: Questions 4–5
Student Guide
Page 280
E4.
Show connections between models and strategies for multiplication (e.g., demonstrate partial products using a rectangle model for multiplication).
Two-Digit Multiplication Quiz
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).
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).
E8.
Choose appropriately from among estimation, mental math strategies, and paper-and-pencil methods to multiply whole numbers.