3rd Grade
​Week 3:  Subtraction Strategies

Cover Page            Weeks 1         Week 2        Week 3 

Investigations -  
​Unit 8:
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Math Expressions -
​Unit 4, Lessons 1,4

CA Common Core Standards:  Number and Operations in Base 10
Addition and Subtraction: understand concepts addition and subtraction up to 1000.
For more detail, go to the COVER PAGE for this unit.
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 WEEK 1  AT-A-GLANCE: Investigations, Unit 8, Investigation 3
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Day 1:  Investigations U8, I3, S3.1 - Collections and Compare

Day 2:  Investigations U8, I3, S3.2 - Travel Problems
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Day 3: Investigations U8, I3, S3.3 - Assessment (Subtraction Strategies)

Day 4:  Investigations U8, I3, S3.4 - Money Problems and Subtraction Fact Assessment

Day 5:  Investigations U8, I3, S3.5 - Subtracting Whole Dollars

Finish Sessions 3.6 - 3.9 next week.

Additional Math Centers from K-5 Teaching Resources

Day 1

Investigations Unit 8 
Investigations U8, I3, S3.1 - Collections and Compare
​Summary 
Students will practice how to find fractions in one group.  
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Students handbook Investigations pgs:38, 39, 40, 

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Day 2

  Investigations U8, I3, S3.2 - Travel Problems
Summary: Students solve addition problems which have more than 2 additives.  

Student handbook Investigations: 41, 42,43, 44

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Day 3

Investigations U8, I3, S3.3 - Assessment (Subtraction Strategies)
​Summary students will write a subtraction word problem y find the solutions.   

Student handbook pgs: 45, 46, 47

Day 4

Math Workshop Items

Investigations U8, I3, S3.4 - Money Problems and Subtraction Fact Assessment

Summary: Students will write down a word problem and find the subtraction solution. 
Student handbook Unit 8 pgs: 49, 50, 51, 52, 53, 54, 

Day 5

Investigations U8, I3, S3.5 - Subtracting Whole Dollars
Summary: students solve problems (sharing money).  They will practice writing down decimals in their answers. 

Student handbook Unit8 pgs: 55, 56, 57, 58, 59, 60, 

Assessment