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%
responses 2007 ('03) |
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y4 |
y8 |
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| 1. Explain what you think will happen if you put a magnet on the box of iron filings? |
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magnet will attract filings/
will cause filings to move |
88 (92) |
96 (98) |
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| Give student the bar magnet. 2. What happens when you move the magnet around on the box? Allow time for student to explore. |
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filings moved with magnet |
94 (92) |
95 (93) |
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| Put the magnet on the table.
Put the iron filings on top. 3. What has happened to the iron filings? |
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filings attracted to magnet |
32 (33) |
40 (35) |
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filings concentrated/stood up/were
darker at ends of magnet |
20 (17) |
32 (28) |
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filings formed patterns/lined up
around the magnet |
5 (7) |
17 (9) |
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| 4. Try to explain why you think this happened? |
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iron is magnetic
(and is attracted to magnet) |
26 (30) |
33 (40) |
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effect is strongest at the ends/poles |
6 (5) |
18 (14) |
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particles/filings align with magnetic field which curves between the poles |
0 (0) |
4 (2) |
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Total
score: |
5–8 |
4 (4) |
10 (10) |
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4 |
17 (20) |
34 (26) |
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3 |
34 (38) |
35 (33) |
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2 |
36 (28) |
18 (29) |
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0–1 |
9 (10) |
3 (2) |
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| Subgroup Analysis [Click on charts to enlarge] : |
Year 4  |
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| Commentary: |
| This was another popular task, involving experimentation, observation and explanation. There was little change in performance between 2003 and 2007 for year 4 students and a minor improvement for year 8 students. Mäori students performed quite well at both year levels, as did year 8 Pasifika students (who equalled the performance of Pakeha students). |