In Grade 2, instructional time should focus on four critical areas: (1) extending understanding of base-ten notation; (2) building fluency with addition and subtraction; (3) using standard units of measure; and (4) describing and analyzing shapes.
Represent and solve problems involving addition and subtraction.
Use addition and subtraction within 100 to solve one- and two-step word problems involving situations of adding to, taking from, putting together, taking apart, and comparing, with unknowns in all positions, e.g., by using drawings and equations with a symbol for the unknown number to represent the problem.
| Content | Skills | Learning Targets | Big Ideas | Essential Questions |
|---|---|---|---|---|
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Operations
Word Problem Situations
Word Problem Solving Strategies
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3 - Use (addition and subtraction within 100 to solve word problems)
3 - Solve (word problems involving situations of adding to, taking from, putting together, taking apart, and comparing)
3 - Use (drawings and equations with a symbol as the unknown number)
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3 - I can use addition and subtraction to solve word problems that involve adding to,taking from,putting together, taking apart, and comparing.
3 - I can use drawings and equations with symbols representing the unknown number as a means of solving word problems.
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A. Addition and subtraction are used to solve word problems.
B. Drawings and equations with symbols for the unknown number can be used to solve word problems.
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A.1 What words in word problems would tell me to use addition or subtraction to solve?
B.1 What strategies can I use to help me solve addition and subtraction problems?
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Fluently add and subtract within 20 using mental strategies. By end of Grade 2, know from memory all sums of two one-digit numbers.
| Content | Skills | Learning Targets | Big Ideas | Essential Questions |
|---|---|---|---|---|
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Math Operations
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2 - Add (Two one-digit numbers within 20)
1 - Know (all sums of two one-digit numbers from memory)
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2 - I can add two one-digit numbers mentally.
1 - I can memorize the sums of two one-digit numbers.
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A. Adding numbers provides structure to our lives.
Subtracting numbers provides structure to our lives.
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A.1 How can I organize things around me?
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Work with equal groups of objects to gain foundations for multiplication.
Determine whether a group of objects (up to 20) has an odd or even number of members, e.g., by pairing objects or counting them by 2s; write an equation to express an even number as a sum of two equal addends.
| Content | Skills | Learning Targets | Big Ideas | Essential Questions |
|---|---|---|---|---|
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Odd and even numbers
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2 - Determine (if a group of objects up to 20 has an odd - or even number of members by pairing)
2 - Determine (if a group of objects up to 20 has an odd or even number of members by counting by 2's)
1 - Write (an equation to express an even number as a sum of 2 equal addends)
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2 - I can determine if a group of objects up to 20 has an odd or even number of members by pairing.
2 - I can determine f a group of objects up to 20 has an odd or even number of members by counting by 2's.
1 - I can write an equation to express an even number as a sum of 2 equal addends.
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A. Groups with an even number of members can be divided into 2 equal groups.
B. Even numbers can be expressed in an equation using 2 equal addends.
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A.1 Can I easily divide a group with an even number of objects?
B.1 Is there a way to represent an even number by using an equation?
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Use addition to find the total number of objects arranged in rectangular arrays with up to 5 rows and up to 5 columns; write an equation to express the total as a sum of equal addends.
| Content | Skills | Learning Targets | Big Ideas | Essential Questions |
|---|---|---|---|---|
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2 - Use (addition to find the total number of objects in a rectangular array with up to 5 rows and up to 5 columns)
1 - Write (an equation to express the total as a sum of equal addends)
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2 - I can use addition to find the total number of objects in a rectangular array with up to 5 rows and up to 5 columns.
1 - I can write an equation to express the total as a sum of equal addends.
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A. One strategy for finding the total number of objects in an array is to add the groups together using equal addends.
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A.1 How can grouping numbers help me solve addition problems?
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