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.
Alaska Mathematics Standards Grade 2 Grade Level/Course 2 Domain Operations and Algebraic Thinking Cluster Add and subtract using numbers up to 20. Standard 2.OA.2. Fluently add and subtract using numbers up to 20 using mental strategies. Know from memory all sums of two numbers. 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. Know mental strategies for addition and subtraction. Know from memory all sums of two one-digit numbers. Apply mental strategies to add and subtract fluently within 20. digit
Alaska Mathematics Standards Grade 2 Grade Level/Course 2 Domain Number and Operations in Base Ten Cluster Understand place value. Standard 2.NBT.2. Count up to 1000, skip-count by 5s, 10s and 100s. 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. Count within 1000. Skip-count by 5s. Skip-count by 10s. Skip-count by 100s.
Alaska Mathematics Standards Grade 2 Grade Level/Course 2 Domain Number and Operations in Base Ten Cluster Understand place value. Standard 2.NBT.4. Compare two three-digit numbers based on the meanings of the hundreds, tens and ones digits, using >, =, < symbols to record the results. 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. Know the value of each digit represented in the three-digit number. Know what each symbol represents >, <, and =. Compare two three-digit numbers based on place value of each digit. Use >, =, and < symbols to record the results of comparisons.
Alaska Mathematics Standards Grade 2 Grade Level/Course 2 Domain Measurement and Data Cluster Relate addition and subtraction to length. Standard 2.MD.5. Solve addition and subtraction word problems using numbers up to 100 involving length that are given in the same units (e.g., by using drawings of rulers). Write an equation with a symbol for the unknown 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. Add and subtract lengths within 100. Solve word problems involving lengths that are given in the same units. Solve word problems involving length that have equations with a symbol for the unknown number.
Alaska Mathematics Standards Grade 2 Grade Level/Course 2 Domain Measurement and Data Cluster Relate addition and subtraction to length. Standard 2.MD.6. Represent whole numbers as lengths from 0 on a number line diagram with equally spaced points corresponding to the numbers 0, 1,2, …, and represent whole-number sums and differences within 100 on a number line diagram. 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. Represent whole numbers from 0 on a number line with equally spaced points. Explain length as the distance between zero and another mark on the number line diagram. Use a number line to represent the solution of whole-number sums and differences related to length within 100.
Alaska Mathematics Standards Grade 2 Grade Level/Course 2 Domain Measurement and Data Cluster Represent and interpret data. Standard 2.MD.10. Draw a picture graph and a bar graph (with single-unit scale) to represent a data set with up to four categories. Solve simple put-together, take-apart, and compare problems using information presented in a bar graph. 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. Recognize and identify picture graphs and bar graphs. Identify and label the components of a picture graph and bar graph. Solve problems relating to data in graphs by using addition and subtraction. Make comparisons between categories in the graph using more than, less than, etc. Draw a single-unit scale picture graph to represent a given set of data with up to four categories. Draw a single-unit scale bar graph to represent a given set of data with up to four categories.
Alaska Mathematics Standards Grade 2 Grade Level/Course 2 Domain Geometry Cluster Reason with shapes and their attributes. Standard 2.G.3. Partition circles and rectangles into shares, describe the shares using the words halves, thirds, half of, a third of, etc., and describe the whole as two halves, three thirds, four fourths. Recognize that equal shares of identical wholes need not have the same shape. 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 two, three and four equal shares of a whole. Describe equal shares using vocabulary: halves, thirds, fourths half of, third of etc. Describe the whole as two halves, three thirds, or four fourths. Justify why equal shares of identical wholes need not have the same shape.