Key Ideas in Unit 12 |
L1 SAB |
L1 DPP |
L1 DPP |
L2 SAB |
L2 DPP |
L3 SAB |
L4 SAB |
L4 DPP |
L5 SAB |
L5 DPP |
L5 DPP |
L6 SAB |
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Unit 12 Expectations | |||||||||||||||
Math Content |
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Number 1 Number Sense: Understand the base-ten number system, recognize relationships among quantities and numbers, and represent numbers in multiple ways. |
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E1 |
Determine whether a group of objects has an odd or even number of members (e.g., by pairing objects or counting them by 2s). (Algebra 4) [2.OA.3] [MP2, 3, 6] | ||||||||||||||
Number 2 Operations: Understand the meaning of numerical operations and their application for solving problems. |
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E2 |
Represent multiplication and division problems using tiles, drawings, number lines, rectangular arrays, and number sentences. (Algebra 3) [2.OA.1, 4; 2.G.2] [MP1, 2, 4, 5, 6] | ||||||||||||||
E3 |
Make connections between repeated addition and multiplication. (Algebra 4) [2.OA.4] [MP7, 8] | ||||||||||||||
E4 |
Write stories for multiplication and division sentences. [2.OA.4] [MP4, 6] | ||||||||||||||
E5 |
Distinguish between addition and multiplication situations. [2.OA.4] [MP1, 2, 3, 4, 8] | ||||||||||||||
E6 |
Write a number sentence to express an even number as a sum of two equal addends. (Algebra 3) [2.OA.3] [MP2, 4, 5, 7, 8] | ||||||||||||||
Number 3 Computation and Estimation: Use efficient and flexible procedures to compute accurately and make reasonable estimates. |
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E7 |
Solve multiplication and division problems using strategies (e.g., skip counting, repeated addition) with tiles, drawings, number lines, rectangular arrays, and number sentences. (Algebra 4) [2.OA.1, 4, 2] [MP1, 2, 3, 5, 6, 7, 8] | ||||||||||||||
E8 |
Divide a set of objects into equal-size groups. [2.OA.4] [MP1, 2, 3, 5, 6, 7, 8] | ||||||||||||||
Math Facts |
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Number 3 Computation and Estimation: Use efficient and flexible procedures to compute accurately and make reasonable estimates. |
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E9 |
Demonstrate fluency with the subtraction facts related to the addition facts in Group D (6 − 3, 7 − 3, 7 − 4,
8 − 4, 9 − 4, 9 − 5, 12 − 6, 13 − 6, 13 − 7, 14 − 7, 15 − 7, 15 − 8, 16 − 8, 19 − 10, 19 − 9, 20 − 10). [2.OA.1, 2] |
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E10 |
Determine the unknown number in an addition or subtraction sentence relating three whole numbers for the facts in Group D. (Algebra 4) [2.OA.1, 2] [MP2] | ||||||||||||||
Math Practices |
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MPE1 | Know the problem. I read the problem carefully. I know the questions to answer and what information is important. | ||||||||||||||
MPE2 | Find a strategy. I choose good tools and an efficient strategy for solving the problem. | ||||||||||||||
MPE3 | Check for reasonableness. I look back at my solution to see if my answer makes sense. If it does not, I try again. | ||||||||||||||
MPE4 | Check my calculations. If I make mistakes, I correct them. | ||||||||||||||
MPE5 | Show my work. I show or tell how I arrived at my answer so someone else can understand my thinking. | ||||||||||||||
MPE6 | Use labels. I use labels to show what numbers mean. |