Unit: 3. Addition and Subtraction of Whole Numbers
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Unit Description
This is a 8 day unit that covers the addition and subtraction of whole numbers. The unit will review the basic algorithms for these 2 operations, and will place a heavy emphasis on regrouping according to place value. The unit will also present scholars with rigorous word problems that they will be expected to analyze and solve.
Lessons
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Addition/Subtraction Week 1: Learning How to Regroup
Resources: 3 SWBAT regroup numbers with and without place value blocks (preparation for adding and subtracting with regrouping). |
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Addition/Subtraction Week 2: Addition and Subtraction of Whole Numbers
Resources: 3 SWBAT add whole numbers with and without regrouping. SWBAT subtract whole number with and without grouping, including across 0s. |
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Addition/Subtraction Week 3: Word Problems and Bar Models
Resources: 14 SWBAT analyze and solve word problems using bar models. |
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Week 4: Word Problems and Bar Models 2
Resources: 5 SWBAT to analyze and solve word problems using bar models. SWBAT choose the correct operation (subtraction/addition) when doing word problems. |
Unit Resources
| AdditionandSubtractionWholeNumbersParentLetter2012.docx |
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| AdditionandSubtractionWholeNumbersPerformanceTaskLetter2012.docx |
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| Adding_SubtractionWholeNumbersUnit2012.doc | |
| AddSubUnitTest.doc |
