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 |
|
|
|
(click
on picture for enlargement)
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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. |