| Approach: |
Independent |
|
Level: Year
8 |
| Focus: |
Perimeter
and area |
|
| Resources:
|
Ruler,
answer booklet |
|
|
| Questions/instructions: |
 |
Shapes
with the same perimeter can have different areas.
|
| |
|
| |
%
responses
2009 ('05) |
- |
y8 |
1.
Draw 3 rectangles that have perimeters of 24 cm.
Write the area in the middle of each rectangle.
|
|
|
First
Rectangle:
|
|
79
(81) |
| |
43
(39) |
| Correct
area given: |
with
units (cm2) |
|
14
(15) |
| correct
area given, no units/cms ONLY |
11
(14) |
Second
Rectangle:
|
|
51
(55) |
| |
31
(34) |
| Correct
area given: |
with
units (cm2) |
|
13
(18) |
| correct
area given, no units/cms ONLY. |
8
(10) |
Third
Rectangle:
|
|
47
(46) |
|
29
(29) |
Correct
area given:
|
with
units (cm2) |
|
12
(16) |
| correct
area given, no units/cms ONLY |
6
(9) |
| Overall: |
drew
three rectangles, all with 24 cm perimeters, all with different areas
|
20
(21) |
| drew
three rectangles, all with 24 cm perimeters, two or more with same
areas |
1
(2) |
|
Total
score: |
11–14
|
|
14
(19) |
8–10
|
10
(10) |
5–7
|
12
(6) |
2–4
|
28
(30) |
| 0–1
|
36
(35) |
