:Hedgehog
Trend Task
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Approach: One to one  Level: Year 4 and year 8
Focus:Understanding rotation and angles.
Resources: Garden picture with metal washer in the middle; model hedgehog to fit washer; recording book.
1.3MB

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Questions/instructions:

Here is a hedgehog and its garden.

Hand student the hedgehog.

Put the hedgehog in the centre of the garden so it is facing the tree. I want you to move the hedgehog the way I tell you.

Write each student response on the recording sheet. After every turn, ask student to turn the hedgehog to face the tree again.


% responses
2001 ('97)
y4
y8
1. First turn the hedgehog clockwise a quarter-turn. What is it facing?

flowers
63 (56)
92 (89)
2. Now turn the hedgehog clockwise a one-third turn. What is it facing?
cat
18 (13)
40 (40)
3. Now turn the hedgehog anti-clockwise a half-turn. What is it facing?
ladybird
65 (58)
85 (91)
turned anti-clockwise
77 (74)
94 (95)
4. Now turn the hedgehog anti-clockwise a three-quarters turn.What is it facing?
flowers
39 (38)
63 (77)
Year 8:
5. Now turn the hedgehog 90° to the left. What is it facing?


spider
60 (67)
6. Now turn the hedgehog 360° to your left. What is it facing?



tree
74 (84)
turned left
91 (93)
7. Turn the hedgehog 30° to the right. What is it facing?

butterfly
53 (58)
8. Turn the hedgehog 270° to the right. What is it facing?

spider
38 (44)
9. What directions could you give me if I wanted to turn the hedgehog to face the frog?
Prompt: Could you be more specific?
appropriate directions
35 (39)
Year 4
10. Now turn the hedgehog 1/12 to the right. What is it facing?
butterfly
17 (16)
11. Now turn the hedgehog three-quarters around to the left. What is it facing?
flowers
37 (41)
12. What directions could you give me if I wanted to turn the hedgehog to face the frog?

appropriate directions
48 (45)
Commentary
Students were much more successful with 1/4 and 1/2 turns than others such as 1/3, 3/4, and 1/12. Year 4 students did equally well or slightly better in 2001 than in 1997, but year 8 students did a little worse in 2001 than in 1997.
 
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