|
||||||||||
|
|||||||||||||
|
|||||||||||||
|
%
responses
|
|||||||||||||
|
y4
|
y8
|
||||||||||||
| Questions/instructions: Put the Wallies picture in front of student. About how many Wallies do you think are shown in this picture? Don’t count them. Just make your best estimate. |
|||||||||||||
|
Student
estimate:
[Actual number of Wallies approximately 525] |
400–650
|
8
|
16
|
||||||||||
|
650–750
|
1
|
2
|
|||||||||||
|
300–399
|
8
|
9
|
|||||||||||
|
750–3000
|
29
|
35
|
|||||||||||
|
100–299
|
38
|
25
|
|||||||||||
|
other
|
16
|
13
|
|||||||||||
| Commentary Only 27 percent of year 8 and 17 percent of year 4 students made a reasonably accurate estimate (within ± 50 percent of the actual value). |
|||||||||||||
 |
 |
|