Grade 5-8 Performance Task
Contributed by: New York State Education Department
(NYSED)
NYS Alternative Assessment in Science Project (1996)
Ocean Bottom - Scoring Rubric
Maximum Score - 17 Points
| Task 1a & b |
2 points total
|
Standard: The student will correctly identify
the regions based on the profile.
Criteria:
- 1a. Allow 1 point for the mid ocean ridge.
- 1b. Allow 1 point for continental shelf.
| Task 2a & b |
2 points total
|
Standard: The student correctly reads ocean depth based
on the profile.
Criteria:
- 2a. Allow 1 point for 4800m +/- 100m.
- 2b. Allow 1 point for 140m +/- 100m.
| Task 3 - Depth changes - Data table |
5 points total
|
Standard: The student will determine depth change at different
locations on the profile as shown below.
Criteria:
- Allow 1 point for each correct depth change
| |
|
depth change (m) |
| Continental slope |
=
|
1200m +/- 100m |
| Continental rise |
=
|
300m +/- 100m |
| Abyssal plain |
=
|
20m +/- 100m |
- 3a Allow 1 point for continental slope
- 3b Allow 1 point for abyssal plain
| Task 4 - Vertical exaggeration |
2 points total
|
Standard: The student will accurately determine or explain
the vertical exaggeration in the profile.
Criteria:
- Allow 1 point for proper substitution of values (including
unit changes)
- Allow 1 point for calculation of VE
Note: Based on student data
OR
- Allow 2 points if there is a clear explanation of the difference
between both the horizontal and vertical axes of figure 1.
- Allow 1 point if the explanation shows a depth exaggeration
but lacks a numerical explanation.
| Task 5 - Description |
2 points total
|
Standard: The student will apply the knowledge of scale
to the profile.
Criteria:
- Allow 2 points for a correct statement implying the profile
shows exaggerated depth. Answer should be in complete sentences.
- Allow 1 point for a correct statement, but not in complete
sentences.
- Allow 0 points for an incorrect statement even if it is in
complete sentences.
(We want students to know it's flatter than this picture.)
| Task 6 - Application |
4 points total
|
Standard: The student will apply theories of ocean bottom features
related to continental drift.
Criteria:
- 6a. Allow 1 point for diagram or explanation showing accurate
representation of sea floor spreading.
Note: Refer to double jeopardy
- 6b. Allow 1 point for a correct statement identifying igneous,
volcanic rock or Basalt.
- 6c. Allow 3 points for a statement relating vents to sea floor
spreading or heat flow. Answer should be in complete sentences.
- Allow 0 points for an incorrect statement even if it is in
complete sentences.
| |
Highest possible score - 17 points
|
Ocean Bottom Profile - Scoring Form
Student ID ___________
Male or Female (circle one)
Circle the student's score for each question. Add the points for
each question and write the total score at the bottom of the scoring
form.
| 1. Identified regions |
|
|
|
a. Widest - mid ocean ridge
|
0
|
1
|
|
b. Narrowest - continental shelf
|
0
|
1
|
|
| 2. Depths |
|
|
|
a. 15 degrees W - 4800m +/- 100m
|
0
|
1
|
|
b. Shelf edge - 140m +/- 100m
|
0
|
1
|
|
| 3. Depth change |
|
|
|
Continental slope - 1200m +/- 100m
|
0
|
1
|
|
Continental rise - 300m +/- 110m
|
0
|
1
|
|
Abyssal plain - 0m +/- 100m
|
0
|
1
|
|
a. Steepest - continental slope
|
0
|
1
|
|
b. Level - abyssal plain
|
0
|
1
|
|
| 4. Vertical exaggeration (VE) |
|
|
|
Substitution
|
0
|
1
|
|
Calculation
|
0
|
1
|
|
OR
|
|
|
|
Clear explanation
|
0
|
1
|
2
|
| 5. Description |
0
|
1
|
2
|
| 6. Application |
|
|
|
a. Crustal movement
|
0
|
1
|
|
b. Bedrock
|
0
|
1
|
|
c. Vents
|
0
|
1
|
2
|
Total Score __________
Total possible score - 17 points
|
