Incorrect answer and inaccurate/incomplete table = 0 points
Incorrect answer and inaccurate/incomplete model = 0 points
Incorrect answer and inaccurate/incomplete model = 0 points
Correct response and accurate array = 1 point
Accurately completed table = ½ point
Accurately completed model = ½ point
Accurately completed model = ½ point
Correct response = ½ point
Correct response = ½ point
Correct response = ½ point
Full complete response = 1 point
Full complete response = 1 point
Full complete response = 1 point
3.OA.3
3.OA.3
3.OA.3
Question 21. a. Student gives correct answer: 72 ÷ 9 = , Symbols may vary. b. Student gives correct answer and shows work: Nick needs 8 storage boxes; Check model for accuracy c. Student gives an accurate explanation: Sample explanation: Modelling with
3.OA.3
Points 0.25 0.25 0.5
grouping helped me visualize the total number of comics books and how many groups of 9 there are. That’s how I determined the number of storage boxes Nick needs.
3.OA.3 22. a. Student creates table and gives correct answer: Gema will earn $44 dollars after 9 weeks. Week Earnings
1 4
2 9
3 14
4 19
5 24
6 29
7 34
8 39
1
9 44
b. Student gives an accurate explanation: Sample explanation: After completing the pattern I observed that each week the earnings increase by $5. I also noticed that her earnings alternate between even and odd numbers and the last digit in each number alternates between a 4 and a 9. 3.OA.3
23. Student gives correct answer and an accurate model: 40 = 8 × 5 Models may vary between an array, equal groups, and repeated addition. Check drawings for accuracy. 3.OA.4