Alaska Mathematics Standards Grade 2 Grade Level/Course 2 Domain Operations and Algebraic Thinking Cluster Represent and solve problems involving addition and subtraction. 2.OA.1. Use addition and subtraction strategies to estimate, then solve one- and two-step word problems (using numbers Standard up to 100) involving situations of adding to, taking from, putting together, taking apart and comparing, with unknowns in all positions (e.g., by using objects, drawings and equations). Record and explain using equation symbols and a symbol for the unknown number to represent the problem. Standards of Mathematical Practice Make sense of Reason abstractly Construct viable Model with Use appropriate Attend to Look for and make Look for and problems and and quantitatively. arguments and mathematics. tools strategically. precision. use of structure. express regularity persevere to solve critique the in repeated them. reasoning of reasoning. others. Learning Targets Knowledge Reasoning Skill Products Facts and concepts we want students to Use what they know to reason or solve Use knowledge and reasoning to act Use knowledge, reasoning, and skills to know. problems. skillfully. create a concrete product. Identify the unknown in an Use drawings or equations to addition or subtraction word represent one- and two-step problem. word problems. Write an addition and subtraction Add and subtract within 100 to equation with a symbol for the solve one-step word problems unknown. with unknowns in all positions.
Alaska Mathematics Standards Grade 2 Grade Level/Course 2 Domain Operations and Algebraic Thinking Cluster Represent and solve problems involving addition and subtraction. Standard 2.OA.1. Use addition and subtraction strategies to estimate, then solve one- and two-step word problems (using numbers up to 100) involving situations of adding to, taking from, putting together, taking apart and comparing, with unknowns in all positions (e.g., by using objects, drawings and equations). Record and explain using equation symbols and a symbol for the unknown number to represent the problem. Standards of Mathematical Practice Make sense of problems and persevere to solve them. Reason abstractly and quantitatively. Construct viable arguments and critique the reasoning of others. Model with mathematics. Use appropriate tools strategically. Attend to precision. Look for and make use of structure. Look for and express regularity in repeated reasoning. Learning Targets Knowledge Reasoning Skill Products Facts and concepts we want students to know. Use what they know to reason or solve problems. Use knowledge and reasoning to act skillfully. Use knowledge, reasoning, and skills to create a concrete product. Identify the unknown in an addition or subtraction word problem. Write an addition and subtraction equation with a symbol for the unknown. Use drawings or equations to represent one- and two-step word problems. Add and subtract within 100 to solve one-step word problems with unknowns in all positions.