8th Grade Performance Task
Contributed by: New York State Education Department (NYSED)
NYS Alternative Assessment in Science Project (1996)
Height of Bounce  Scoring Rubric

Maximum score  13 points

Questions 4. and 5. Height of bounce data
table 
3 points total

Height of Release

Height of Bounce (in centimeters)

10 cm

3  6 cm

20 cm

10  18 cm

30 cm

15  25 cm

40 cm

20  30 cm

*** The ranges for height of bounce in the table
are examples only.
Point Criteria:
 Allow 1 point for correctly averaging and rounding at least
3 of the 4 distances.
 Allow 1 point for data collection taken three times (3 trials).
 Allow 1 point for data showing height of bounce within the
acceptable range in at least 3 of 4 releases.
*** The ranges in the table above are examples. Teachers should
determine their own acceptable range for height of bounce before
students do their testing.
To establish ranges, testing should be done on the same surface
and with the same equipment that the students will be using.
Question 6. Graph of data 
5 points total

Point Criteria:
 Allow 1 point for each data point plotted to an accuracy of
+/ cm "height of release," and +/ 2cm "height
of bounce" based on student's data.
 Allow 1 point for plotted points connected properly.
Question 7. Relationship between bounce and
release heights 
2 points total

 Allow two points if the student states a directly proportional
relationship between the height of bounce and the height
of release.
Possible answers:
 As the height of release increases, the height of
bounce increases.
 The higher I release the ball, the higher the height
of bounce.
 The lower the height of release, the lower the height
of bounce.
 The height of bounce is approximately 1/2 to 3/4 that
of the height of release.
 The height of the release was higher than the height
of bounce.
 The height of the release is larger than the bounce.
 The higher you drop the ball the further away the
bounce was from the height you dropped it from.
 Allow one point (partial credit) if the student states the
relationship only in terms of his/her own data.
Possible answers:
 A ball dropped from 40 cm bounces higher than a ball
dropped from 10 cm.
 A ball dropped from 40 cm bounces up to 30 cm high (or
student's own data).
Question 8. Predict the bounce height for release
of 60 cm 
3 points total

Point Criteria:
 Allow 1 point if the student successfully predicts a bounce
height between 3045 cm**
** This range is an example. The teacher should establish an
acceptable range for this height of bounce also.
 Accept a student's prediction if supported by his/her
graph.
 Allow 2 points if the student explains his/her prediction
using the data collected.
 I extended the line on my graph and observed where it
crossed over the 60 cm release point.
 Since the heights of bounce were approximately 1/2 to
3/4 the height of release, a ball dropped from 60 cm would
bounce 3040 cm.
 Allow 1 point if the student implies or states that he/she
tested a ball drop from 60 cm.

Highest possible score  13 points

Scoring Form  Height of Bounce
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.
Question

Circle 
Point

Breakdown 
Points Earned

4. & 5. Bounce Data Table 




3 trials completed

0

1



Average

0

1



Data within range

0

1


___________

6. Graph 




10 cm plot

0

1



20 cm plot

0

1



30 cm plot

0

1



40 cm plot

0

1



overall (connected) plot

0

1


___________

7. Stated Relationship 
0

1

2

___________

8. Extrapolation to 60 cm 




Predicted height

0

1



Explanation

0

1

2

___________

Total Score _______________
Total possible score  13 points
