3rd Grade
​Week 1:  Place Value, Addition, and Subtraction

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
Day 1:  Addition and Subtraction (Investigations, Unit 8, Session 1.1)  *Paper Clip Problems*
Day 2:  Addition and Subtraction in Multiples (Investigations, Unit 8, Session 1.2) *Capture from 300 to 600*
Day 3: Estimating Subtraction Problems (Investigations, Unit 8, Session 1.3) *Subtraction*
Day 4:  Place Value Drawings (Math Expressions, Unit 4, Lesson 1) *Draw for 2 and 3 digit numbers*
Day 5:  Place Value (Math Expressions, Unit 4, Lesson 4) *Practice*

Additional Math Centers from K-5 Teaching Resources

Day 1

Investigations Unit 8 Lesson 1.1

Lesson Summary
Paper Clip Problems Students combine hundreds to 
numbers above 1,000 and solve problems in which they 
subtract 2- and 3-digit numbers from multiples of 100.

Obviously we are not going to give every student a box of paper clips so use the suggestion to give each student a 10 x 10 grid instead.

Student Activity Book pp. 1–5
Student Math Handbook pp. 29–30, 32–35, 36

Math Focus Points
Combining hundreds to numbers above 1,000
Subtracting from multiples of 100
Reading and writing numbers in the thousands

Materials
M9, 100 Grids Make copies. (1 sheet per student; plus 1 cut-apart grid per student, if needed as alternative to boxes of paper clips)

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Day 2

Day 2:  Addition and Subtraction in Multiples (Investigations, Unit 8, Session 1.2) *Capture from 300 to 600*
Box Crayons (Session 1.2)
Practice with Multiplication Cards

Summary students will solve problems in which they combine and then they will subtract groups of 100. 

​Math Focus Points
Combining hundreds to numbers above 1,000
Subtracting from multiples of 100
Reading and writing numbers in the thousands

​Materials
M9, 100 Grids Make copies. (1 sheet per student; plus 1 cut-apart grid per student, if needed as alternative to boxes of paper clips)

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Student Activity book pp. 6,7,8,9,10

Day 3

Materials

Games

Day 3: Estimating Subtraction Problems (Investigations, Unit 8, Session 1.3) *Subtraction*

Summary students practice how to resolve problems with subtracting and adding in the context of word problem.
Problems relating to subtracting 
Identify and represent fractions (can be used as a review)

​Math Focus Points 
Combining hundreds to numbers above 1,000 
Subtracting from multiples of 100
Reading and writing numbers in the thousands

Student Activity Book pp. 11,12,13,14

Day 4

Math Workshop Items

​ Place Value Drawings (Math Expressions, Unit 4, Lesson 1) *Draw for 2 and 3 digit numbers*

Summary: Represent hundred, tens, and ones.  Place value drawings for thousands, hundreds, tens, and ones.  Use place value to compare numbers. Make and interpret place value drawings.  Practice multiplications and divisions.  

Student handbook Unit 4 lesson 1 pgs: 227, 228, 
ME Homework book (Haz la tarea y recuerda) pgs.177, 178 

Day 5

 Place Value (Math Expressions, Unit 4, Lesson 4) *Practice*
Summary: Identify numbers from scrambled place value names and solve word problems.  

Activity focus: Identify numbers expressed in scrambled order, solve place value word problems, extend the Counting on Make a Ten strategies.  
Student Handbook pgs: 231,232, 
ME Homework book (Haz la tarea y recuerda) pgs. 183,184

Assessment