to develop the understanding of the tools strategically. traditional algorithms and their processes Attend to Knowledge of and ability to apply precision. properties of addition and subtraction (CCSS, Page 90, Table 3) Ability to apply the knowledge of Look for and make addition and subtraction to choose the use of structure. most efficient strategy to solve a problem Look for and Ability to solve various types of addition express regularity and subtraction word problems (CCSS, in repeated Page 88, Table 1) reasoning. Ability to use or ? to represent an unknown in an equation Add and subtract Standard: 2.OA.2 add and subtract within 20 using within 20. Fluently mental strategies. By end of Grade 2, know from memory all sums of two one-digit numbers. (SC 2) Make sense of problems and Essential Skills and Knowledge persevere in Ability to apply counting strategies solving them. to develop automatic recall Ability to use reasoning strategies to make use of known facts (e.g., Reason abstractly sums of ten, making ten, doubles, and near doubles/inside doubles, quantitatively. doubles plus, counting on) Knowledge that subtraction is the Construct viable inverse of addition (e.g., fact Arguments and families) critique the reasoning of Work with equal Standard: 2.OA.3 others. groups of objects Determine whether a group of objects (up to 20 to gain foundations has an odd or even number of members, e.g., Model with for multiplication. by pairing objects or counting them by 2s; write mathematics. an equation to express an even number as a sum of two equal addends. (SC 2) Use appropriate tools strategically.
to develop the understanding of the traditional algorithms and their processes Knowledge of and ability to apply properties of addition and subtraction (CCSS, Page 90, Table 3) Ability to apply the knowledge of addition and subtraction to choose the most efficient strategy to solve a problem Ability to solve various types of addition and subtraction word problems (CCSS, Page 88, Table 1) Ability to use or ? to represent an unknown in an equation tools strategically. Attend to precision. Look for and make use of structure. Look for and express regularity in repeated reasoning. Make sense of problems and persevere in solving them. Reason abstractly and quantitatively. Construct viable Arguments and critique the reasoning of others. Model with mathematics. Use appropriate tools strategically. Add and subtract within 20. Standard: 2.OA.2 Fluently add and subtract within 20 using mental strategies. By end of Grade 2, know from memory all sums of two one-digit numbers. (SC 2) Essential Skills and Knowledge Ability to apply counting strategies to develop automatic recall Ability to use reasoning strategies to make use of known facts (e.g., sums of ten, making ten, doubles, near doubles/inside doubles, doubles plus, counting on) Knowledge that subtraction is the inverse of addition (e.g., fact families) Work with equal groups of objects to gain foundations for multiplication. Standard: 2.OA.3 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. (SC 2)
Grade_2_Framework.docx