Assessment Answer Keys

Grade 1,Unit 5: Fish Lengths and Animal Jumps

Assessment following Investigation 1
Answer / Point Value
1. / 4 tiles / 1
2. / 4 tiles / 1
3. / / 1
4. /
/ 1
5. / Student responses should include pictures and numbers to show that Alice’s perch is 4 inches longer. / 1
6. / Student responses should include pictures and numbers to show that the alewife is 5 inches longer than the perch. / 1
Total Points / 6
Assessment following Investigation 2
Answer / Point Value
1. /
3 baby steps / 1
2. / If the student measured the book from the top of the spine to the bottom it would take 4 baby steps.
If the student measured the book from the spine to the edge of the book it would take about 3 baby steps.
/ 1
3. / If the student measured from the top of the paper to the bottom vertically it would take 4 baby steps.

If the student measured across the bottom or the top of the paper it would take about 3 baby steps.
/ 1
4. /
1 kid step / 1
5. / Student responses should include pictures and numbers to show that Rob jumped 4 craft sticks further than Mat. / 1
6. / Student responses should include pictures and numbers to show the total of 13 baby steps. / 1
Total Points / 6
Unit Assessment following Investigation 3A
Answer / Point Value
1. / 6 tiles / 1
2. / 4 ½ tiles / 1
3. / 5 tiles / 1
4. / 4 tiles / 1
5. / Possible answers include:
/ 1
6. /
  • 2 points for all circles showing halves marked, with no incorrect circles marked; the student shows a solid understanding of partitioning circles into halves
  • 1 point for somecircles showing halves marked, with no incorrect circles marked; the student shows a basic understanding of partitioning circles into halves
  • 0 points for incorrect circles marked
/ See rubric
7. /


  • 2 points for all shapes showing halves circled, with no incorrect shapes circled; the student shows a solid understanding of partitioning shapes into halves
  • 1 point for someshapes showing halves circled, with no incorrect shapes circled; the student shows a basic understanding of partitioning shapes into halves
  • 0 points for incorrect circles marked
/ See rubric
8. /


  • 2 points for all shapes showing fourths circled, with no incorrect shapes circled; the student shows a solid understanding of partitioning shapes into fourths
  • 1 point for someshapes showing fourths circled, with no incorrect shapes circled; the student shows a basic understanding of partitioning shapes into fourths
  • 0 points for incorrect shapes marked
/ See rubric
9. / Possible answers include:
/ 1
10. / Possible answers include:

/ 1
11. / Possible answers include:

Any fourth can be colored. / 2
12. / / 1
13. / / 1
14. / / 1
15. / / 1
16. / / 1
Total Points / 20

Baltimore County Public Schools

Office of Mathematics PreK-12

August 2012