2.3 Number, operation, and quantitative reasoning. The student adds and subtracts whole numbers to solve problems. | ||
1 | 2 | 3 |
1.3B Use concrete and pictorial models to apply basic addition and subtraction facts (up to 9+9=18 and 18-9=9) | 2.3 C select addition or subtraction to solve problems using two-digit numbers, whether or not regrouping is necessary (addition and subtraction at this time---addition with regrouping at this time) | 3.3B Select addition or subtraction and use the operation to solve problems involving whole numbers through 999 |
Select addition to solve problems using two-digit numbers, whether or not regrouping is necessary Select subtraction to solve problems using two-digit numbers, whether or not regrouping is necessary Select - to choose in preference to another or others; pick out Solve - to work out the answer or solution to (a mathematical problem) | ||
Activities:
- begin solving word problems only using the numbers needed - no extra information
- begin with only 1 step problems
- display answer choices in words
Anchor Stations:
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