2 The student solves zero The student solves one The student solves two The student correctly: out of three parts out of three parts out of three parts Circles both 5 + 5 + 5 correctly. correctly. correctly. and 3 + 3 + 3 + 3 + 3. 2.OA.4 Writes 5 + 5 + 5 + 5 = 20 or 4 + 4 + 4 + 4 + 4 = 20. Draws an array showing 4 columns of 5. The student solves one 3 The student solves zero The student correctly The student correctly: out of two parts out of two parts shows an array and Draws an array correctly. correctly. writes a matching showing 3 rows of 5. 2.OA.4 equation for a sum Answers 5 + 5 + 5 = other than 15. 15. 4 The student solves zero The student only The student answers The student correctly: out of two parts answers Part (a) or Part Parts (a) and (b) Draws an array to correctly. (b) correctly. correctly but fails to show 3 rows of 3, 2.OA.4 provide a clear and draws an array explanation. to show either 2 rows of 5 or 5 rows of 2. Clearly explains that Sarah would make more money with Choice 2.
2 2.OA.4 The student solves zero out of three parts correctly. The student solves one out of three parts correctly. The student solves two out of three parts correctly. The student correctly: Circles both 5 + 5 + 5 and 3 + 3 + 3 + 3 + 3. Writes 5 + 5 + 5 + 5 = 20 or 4 + 4 + 4 + 4 + 4 = 20. Draws an array showing 4 columns of 5. 3 2.OA.4 The student solves zero out of two parts correctly. The student solves one out of two parts correctly. The student correctly shows an array and writes a matching equation for a sum other than 15. The student correctly: Draws an array showing 3 rows of 5. Answers 5 + 5 + 5 = 15. 4 2.OA.4 The student solves zero out of two parts correctly. The student only answers Part (a) or Part (b) correctly. The student answers Parts (a) and (b) correctly but fails to provide a clear explanation. The student correctly: Draws an array to show 3 rows of 3, and draws an array to show either 2 rows of 5 or 5 rows of 2. Clearly explains that Sarah would make more money with Choice 2.