calculation error. the problem (e.g., a Only a correct answer rectangular picture of is given with no other the stall with side work shown. lengths appropriately labeled and an equation like 5 + 5 + 7 + 7 or 10 + 14). 4 Student may or may Student may or may Student answers at All answers are correct not have a correct not have a correct least one part and appropriate work answer. Student work answer. correctly; an incorrect is shown. 3.OA.8 is missing in one or answer in one part is Strategy may be Student answers 42 both parts. the result of a unclear or feet of wood trim. calculation error. OR inappropriate for Student work the problem. AND demonstrates a Student may or may strategy not have a correct Answer may or Student work appropriate to the answer. Student work may not include a demonstrates a problem (e.g., 10 + in both parts letter for the strategy 10 + 8 + 8 + 3 + 3.) demonstrates a unknown, and appropriate to the strategy or equation equation may not problem. Student answers 24 that is inappropriate entirely match the more feet of wood Student writes an for the problem. problem. trim are needed for appropriate the bedroom than equation(s) for the closet. including a letter Student writes an for the unknown. appropriate equation(s) including a letter for the unknown (e.g., 8 + 10 + 10 + 5 = 33, 33 – (3 + 3 + 3) = w.) 5 Student correctly Answer is correct but Work demonstrates a Answer may be answers that the there is no work. strategy appropriate to incorrect due to a perimeter is 52 inches. the problem but calculation error; OR 3.MD.8 Student work several calculation however, the work Work demonstrates an demonstrates a errors result in an demonstrates a inappropriate strategy strategy appropriate to incorrect answer. strategy appropriate to the problem (e.g., for the problem and the problem. student may use a the answer is incorrect. combination of multiplication and addition to calculate the perimeter).
Only a correct answer is given with no other work shown. calculation error. the problem (e.g., a rectangular picture of the stall with side lengths appropriately labeled and an equation like 5 + 5 + 7 + 7 or 10 + 14). 4 3.OA.8 Student may or may not have a correct answer. Student work is missing in one or both parts. OR Student may or may not have a correct answer. Student work in both parts demonstrates a strategy or equation that is inappropriate for the problem. Student may or may not have a correct answer. Strategy may be unclear or inappropriate for the problem. Answer may or may not include a letter for the unknown, and equation may not entirely match the problem. Student answers at least one part correctly; an incorrect answer in one part is the result of a calculation error. AND Student work demonstrates a strategy appropriate to the problem. Student writes an appropriate equation(s) including a letter for the unknown. All answers are correct and appropriate work is shown. Student answers 42 feet of wood trim. Student work demonstrates a strategy appropriate to the problem (e.g., 10 + 10 + 8 + 8 + 3 + 3.) Student answers 24 more feet of wood trim are needed for the bedroom than for the closet. Student writes an appropriate equation(s) including a letter for the unknown (e.g., 8 + 10 + 10 + 5 = 33, 33 – (3 + 3 + 3) = w.) 5 3.MD.8 Answer is correct but there is no work. OR Work demonstrates an inappropriate strategy for the problem and the answer is incorrect. Work demonstrates a strategy appropriate to the problem but several calculation errors result in an incorrect answer. Answer may be incorrect due to a calculation error; however, the work demonstrates a strategy appropriate to the problem. Student correctly answers that the perimeter is 52 inches. Student work demonstrates a strategy appropriate to the problem (e.g., student may use a combination of multiplication and addition to calculate the perimeter).