Lesson 8

Workshop: Multiplication with Larger Numbers

Est. Class Sessions: 2
X

Mathematical Standards

4.NBT.A
Generalize place value understanding for multi-digit whole numbers. (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)
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.
MP3.
Construct viable arguments and critique the reasoning of others.
MP6.
Attend to precision.
MP7.
Look for and make use of structure.

Students practice solving multiplication problems involving multidigit numbers. This Workshop lesson allows students to choose from several problem sets and a game to review multiplication concepts and practice multiplication methods.

Content in this Lesson

  • Using place value concepts and the distributive property to multiply [E3].
  • Showing connections between models and strategies for multiplication [E4].
  • Estimating products [E6].
  • Multiplying multidigit numbers by 1-digit numbers using mental math strategies and paper-and-pencil methods (e.g., expanded form, all-partials, compact) [E7].
  • Choosing appropriately from among estimation, mental math strategies, and paper-and-pencil methods to multiply whole numbers [E8].
  • Choosing an appropriate strategy to solve problems in real-world situations [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

Supplies for Students

scissors
Digit Cards 0–9 (from Unit 6)
envelope to store Digit Cards 0–9

Materials for the Teacher

Display of the Digit Cards 0–9 Master (Teacher Guide). See Materials Preparation.
Display of Workshop: Multiplication with Larger Numbers Self-Check: Questions 1–4 (Student Guide) Page 291
Display of When Do We Estimate? Master (Teacher Guide)
Display of the Multiplication Strategies Menu for Larger Numbers (Student Guide) Reference
Unit 7 Assessment Record
Math Facts Class Record
Unit 7 Individual Assessment Record

Materials Preparation

Digit Cards. If students did not prepare and save a set of Digit Cards 0–9 previously, provide them with double-sided copies of the Digit Cards 0–9 Master to cut apart and store in an envelope. You will also need to prepare a display set of cards to demonstrate the game. You may use the Master or a deck of playing cards. If using a deck of playing cards, the ace can stand for 1 and a face or joker card can stand for zero.

Assessment in this Lesson

Assessment Expectation Assessed

Practicing Multiplication Strategies
Self-Check:
Questions 1 and 13
Student Activity Book
Pages 239 and 244,
respectively
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).

Workshop: Multiplication with Larger Numbers
Self-Check: Questions 1–4
Student Guide
Page 291
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.

Workshop: Multiplication with Larger Numbers
Check-In: Questions 23–28
Student Guide
Page 295
with corresponding
Feedback Box
Teacher Guide - digital
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.

DPP Item Y
Fact Family Quiz
Teacher Guide - digital
E2.
Multiply numbers that are multiples of ten.

Home Practice Part 6
Teacher Guide - digital
E10.
Determine the unknown number in a multiplication or division sentence relating three whole numbers for the 2s and 3s facts.

DPP Item AA
Quiz on 2s and 3s
Division Facts
Teacher Guide - digital
E9.
Demonstrate fluency with the division facts for the 2s and 3s.

Vocabulary in this Lesson