Alaska Mathematics Standards Grade 2 Grade Level/Course 2 Domain Geometry Cluster Reason with shapes and their attributes. 2.G.3. Partition circles and rectangles into shares, describe the shares using the words halves, thirds, half of, a third of, Standard 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 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 two, three and four equal Justify why equal shares of shares of a whole. identical wholes need not have the same shape. Describe equal shares using vocabulary: halves, thirds, fourths half of, third of etc. Describe the whole as two halves, three thirds, or four fourths.
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.