Lesson 6

Workshop: Addition

Est. Class Sessions: 2–3
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Mathematical Standards

3.NBT.A
Use place value understanding and properties of operations to perform multi-digit arithmetic. (3.NBT.A.2)

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.
MP4.
Model with mathematics.
MP5.
Use appropriate tools strategically.
MP6.
Attend to precision.

This Workshop allows students to choose from several problem sets to continue to develop and practice their strategies for solving multidigit addition problems. Students also identify patterns in the different types of palindromes while practicing multidigit addition.

Content in this Lesson

  • Showing that different partitions of the same number are equal [E1].
  • Representing and solve addition problems using base-ten piece and number lines [E2].
  • Adding multidigit numbers using mental math strategies [E3].
  • Adding multidigit numbers using paper-and-pencil methods [E4].
  • Choosing appropriately among mental math and paper-and-pencil methods to add.
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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

crayons or colored pencils
set of base-ten pieces
calculator, optional

Materials for the Teacher

Display of Palindrome Recording Chart (Student Activity Book) Page 199
Display of 200 Chart (Student Guide) Reference
Unit 6 Assessment Record
Unit 6 Individual Assessment Record

Assessment in this Lesson

Assessment Expectation Assessed

Strategies to Add
Self-Check: Question 1
Student Activity Book
Page 203
E1.
Use and apply place value concepts to make connections among representations of numbers to the thousands using base-ten pieces, number lines, expanded form, and standard form.
E2.
Represent and solve addition problems using base-ten pieces and number lines.

Strategies to Add
Self-Check: Questions 10–11
Student Activity Book
Page 207
E1.
Use and apply place value concepts to make connections among representations of numbers to the thousands using base-ten pieces, number lines, expanded form, and standard form.
E3.
Add multidigit numbers using mental math strategies (e.g., composing and decomposing numbers, counting on).

Strategies to Add
Self-Check: Question 16
Student Activity Book
Page 211
E1.
Use and apply place value concepts to make connections among representations of numbers to the thousands using base-ten pieces, number lines, expanded form, and standard form.
E4.
Add multidigit numbers using paper-and-pencil methods (e.g., expanded form, all-partials, and compact).

Addition and Place Value Quiz
with Feedback Box
Teacher Guide - digital
E2.
Represent and solve addition problems using base-ten pieces and number lines.
E3.
Add multidigit numbers using mental math strategies (e.g., composing and decomposing numbers, counting on).
E4.
Add multidigit numbers using paper-and-pencil methods (e.g., expanded form, all-partials, and compact).
E5.
Estimate sums using mental math strategies (e.g., rounding using benchmarks, using convenient numbers, composing and decomposing numbers, counting on).

Vocabulary in this Lesson