502 600 160 2 The student solves one The student solves The student solves five The student correctly to two out of six parts three to four out of six out of six parts models the arrow way correctly by using the parts correctly by using correctly by using the and solves to find: 2.NBT.7 arrow way or solves all the arrow way or arrow way. 442, +100 six parts correctly, but provides a correct 2.NBT.8 -100, -10 does not use the arrow answer for up to six 658, 758 way. parts, but only uses the arrow way for three 749 parts. 791 470 The student attempts 3 The student solves one The student solves five The student correctly: to use a chip model to or two out of six parts out of six parts Models with place answer Parts (a) and correctly with or correctly by using a value chips and the 2.NBT.7 (b), but arrives at an without a chip model chip model for Parts (a) vertical form to incorrect answer, and and with or without and (b) or explaining 2.NBT.9 solve: the student shows no providing a written using pictures, words, 587 explanation for Parts explanation. or numbers for Parts 920 (c), (d), (e), and (f), but (c), (d), (e), and (f). correctly answers true Explains using or false. Or the student pictures, words, or provides some numbers to solve: explanation for Parts False (c), (d), (e), and (f), but True the explanation is False incorrect. False 4 The student solves one The student solves two The student solves all The student correctly problem correctly with problems correctly by four problems correctly uses two different or without a written using a strategy and shows six to seven strategies to solve: 2.NBT.7 strategy. correctly, or the correct strategies, or 735 2.NBT.8 student solves two or the student solves 860 more problems three out of the four 2.NBT.9 390 correctly without any problems correctly with strategies shown. six correct strategies. 140
502 600 160 2 2.NBT.7 2.NBT.8 The student solves one to two out of six parts correctly by using the arrow way or solves all six parts correctly, but does not use the arrow way. The student solves three to four out of six parts correctly by using the arrow way or provides a correct answer for up to six parts, but only uses the arrow way for three parts. The student solves five out of six parts correctly by using the arrow way. The student correctly models the arrow way and solves to find: 442, +100 -100, -10 658, 758 749 791 470 3 2.NBT.7 2.NBT.9 The student solves one or two out of six parts correctly with or without a chip model and with or without providing a written explanation. The student attempts to use a chip model to answer Parts (a) and (b), but arrives at an incorrect answer, and the student shows no explanation for Parts (c), (d), (e), and (f), but correctly answers true or false. Or the student provides some explanation for Parts (c), (d), (e), and (f), but the explanation is incorrect. The student solves five out of six parts correctly by using a chip model for Parts (a) and (b) or explaining using pictures, words, or numbers for Parts (c), (d), (e), and (f). The student correctly: Models with place value chips and the vertical form to solve: 587 920 Explains using pictures, words, or numbers to solve: False True False False 4 2.NBT.7 2.NBT.8 2.NBT.9 The student solves one problem correctly with or without a written strategy. The student solves two problems correctly by using a strategy correctly, or the student solves two or more problems correctly without any strategies shown. The student solves all four problems correctly and shows six to seven correct strategies, or the student solves three out of the four problems correctly with six correct strategies. The student correctly uses two different strategies to solve: 735 860 390 140