MD Task 3b Measurement and Data Domain Measure and estimate lengths in standard units Cluster Standard(s) 2.MD.3 Estimate lengths using units of inches, feet, centimeters, and meters. 2.MD.4 Measure to determine how much longer one object is than another, expressing the length difference in terms of a standard length unit. Materials SF, Pencil, ruler Task Provide materials to the student. Say: (point Anthony the Ant took this path to get to food to path at top of page). How many inches do you think Anthony the Ant will need to crawl? Write your estimate. (point to path at top of page). Caleb the Caterpillar took this path to get to food How many inches do you think Caleb the Caterpillar will need to crawl. Write your estimate. Measure both paths with a ruler. How many inches did Anthony the Ant take? Write your measurement. How many inches did Caleb the Caterpillar take? Write your measurement. How many more inches did Caleb the Caterpillar crawl than Anthony the Ant? Use numbers, pictures, or words to show your thinking. Continuum of Understanding Uses the ruler correctly, Developing Makes estimates, but one or both are extreme (e.g., Understanding lining up the end of the path 30 inches for one path). with the zero point on the Inaccurately measures one or both paths. ruler. Accurately measures both paths, but incorrectly determines how much longer one path is than Solved “How Many More” by: another. Counting up Complete Estimates are reasonable. Counting back Understanding Accurately measures both paths. Basic fact Correctly determines how much longer one path is Other than another. Standards for Mathematical Practice 1. Makes sense and perseveres in solving problems. 2. Reasons abstractly and quantitatively. 3. Constructs viable arguments and critiques the reasoning of others. 4. Models with mathematics. 5. Uses appropriate tools strategically. 6. Attends to precision. 7. Looks for and makes use of structure. 8. Looks for and expresses regularity in repeated reasoning.
MD Task 3b Domain Measurement and Data Cluster Measure and estimate lengths in standard units Standard(s) 2.MD.3 Estimate lengths using units of inches, feet, centimeters, and meters. 2.MD.4 Measure to determine how much longer one object is than another, expressing the length difference in terms of a standard length unit. Materials SF, Pencil, ruler Task Provide materials to the student. Say: Anthony the Ant took this path to get to food (point to path at top of page). How many inches do you think Anthony the Ant will need to crawl? Write your estimate. Caleb the Caterpillar took this path to get to food (point to path at top of page). How many inches do you think Caleb the Caterpillar will need to crawl. Write your estimate. Measure both paths with a ruler. How many inches did Anthony the Ant take? Write your measurement. How many inches did Caleb the Caterpillar take? Write your measurement. How many more inches did Caleb the Caterpillar crawl than Anthony the Ant? Use numbers, pictures, or words to show your thinking. Continuum of Understanding Developing Understanding Makes estimates, but one or both are extreme (e.g., 30 inches for one path). Inaccurately measures one or both paths. Accurately measures both paths, but incorrectly determines how much longer one path is than another. Uses the ruler correctly, lining up the end of the path with the zero point on the ruler. Solved “How Many More” by: Counting up Counting back Basic fact Other Complete Understanding Estimates are reasonable. Accurately measures both paths. Correctly determines how much longer one path is than another. Standards for Mathematical Practice 1. Makes sense and perseveres in solving problems. 2. Reasons abstractly and quantitatively. 3. Constructs viable arguments and critiques the reasoning of others. 4. Models with mathematics. 5. Uses appropriate tools strategically. 6. Attends to precision. 7. Looks for and makes use of structure. 8. Looks for and expresses regularity in repeated reasoning.
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