| Approach: |
One
to one |
|
Level: Year
8 |
| Focus: |
Patterns/spatial
relationships |
|
| Resources:
|
Ball
pyramid, recording book |
|
|
| Questions/instructions: |
|
Have
a look at this pyramid made of balls. You can pick it up if you
want to. You can use pencil and paper if you need to.
|
 |
| |
|
|
| |
%
responses
2009 ('05) |
y4 |
y8 |
| 1.
How many balls make up the pyramid? |
30
|
|
54
(63) |
| 2.
How many balls are hidden in the middle? |
1
|
25
(25) |
| 3.
If another layer is added to the bottom of the pyramid, how many more
balls would be needed to make the new layer? |
25
|
37
(41) |
| 4.
Describe how you got that answer. |
|
| clear
explanation with 5 × 5 calculation |
32
(27) |
| clear
explanation of thinking process |
3
(9) |
| some
explanation but not clear |
4
(5) |
|
Total
score: |
4
|
|
24
(24) |
3
|
9
(11) |
2
|
3
(5) |
1
|
28
(29) |
| 0
|
36
(31) |
