G3 U10 Assessment Key
Grade 3 Unit 10 Assessment Geometry
Answer Key All questions are worth 1 point unless otherwise noted. 1.
2.
3.
4.
5.
C
A
B
D
B
3.MD.5a
3.MD.5b
3.MD.5b
3.MD.6
3.MD.6
6.
7.
8.
9.
10.
D
C
AB
AD
CE
3.MD.7a
3.MD.7b
3.MD.7b
3.MD.8
3.MD.8
11.
12.
13.
14.
B
C
A
AD
3.MD.7d
3.MD.7c
3.MD.7d
3.MD.8
15. 2 points: Student gives the correct answer (including units). 5 inches 3.MD.8
Copyright © Swun Math Grade 3 Unit 10 Assessment (Answer Key)
16. 2 points: Student accurately draws two shapes with an area of 14 square units. Models will vary (see samples below). 2 points: Student accurately finds the perimeter of each shape drawn. Responses will vary. Sample models:
Perimeter = 16 units Perimeter = 18 units
Perimeter = 30 units
2 points: Student accurately describes how two shapes with the same area can have different perimeters. Response will vary based on the shapes drawn. Sample response: The area of both shapes is the same, but the perimeter is different. This is because the distance around the shapes is different. 3.MD.8
Copyright © Swun Math Grade 3 Unit 10 Assessment (Answer Key)
Answer Key All questions are worth 1 point unless otherwise noted. 1.
2.
3.
4.
5.
C
A
B
D
B
3.MD.5a
3.MD.5b
3.MD.5b
3.MD.6
3.MD.6
6.
7.
8.
9.
10.
D
C
AB
AD
CE
3.MD.7a
3.MD.7b
3.MD.7b
3.MD.8
3.MD.8
11.
12.
13.
14.
B
C
A
AD
3.MD.7d
3.MD.7c
3.MD.7d
3.MD.8
15. 2 points: Student gives the correct answer (including units). 5 inches 3.MD.8
Copyright © Swun Math Grade 3 Unit 10 Assessment (Answer Key)
16. 2 points: Student accurately draws two shapes with an area of 14 square units. Models will vary (see samples below). 2 points: Student accurately finds the perimeter of each shape drawn. Responses will vary. Sample models:
Perimeter = 16 units Perimeter = 18 units
Perimeter = 30 units
2 points: Student accurately describes how two shapes with the same area can have different perimeters. Response will vary based on the shapes drawn. Sample response: The area of both shapes is the same, but the perimeter is different. This is because the distance around the shapes is different. 3.MD.8
Copyright © Swun Math Grade 3 Unit 10 Assessment (Answer Key)
