A Bit of a Lemon
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Approach:  One to one
ACCESS
Level: Year 4 and year 8
Focus: Evaluating design  
Resources:
Video on laptop computer (no sound), 4 pictures
frame 332Kb
Questions/instructions:  


This activity uses the computer.

We are going to watch a video of someone using four different types of lemon squeezers. As you watch, think about the things that make a lemon squeezer work well.
Click the A Bit of a Lemon button. No sound with this video.
[Silent video, demonstrating each of the lemon squeezers as adjacent.]
Hand out four pictures.

Here are pictures showing juice from the four different lemon squeezers.


[Click on graphic to enlarge.]


% responses
2008 ('04)
y4
y8
1. Which lemon squeezer do you think worked best?    
 
4
25 (24)
29 (25)
3
52 (58)
53 (60)
2
5 (7)
4 (4)
1
17 (12)
14 (10)
2. What were the things that made it the best lemon squeezer?
 
gets lots of juice
41 (34)
46 (38)
stops pips getting into juice
37 (41)
59 (63)
easy to use and/or not tiring
39 (58)
56 (62)
not too messy to use
7 (6)
9 (13)

Total score:
4
0 (0)
1 (1)
3
4 (9)
15 (13)
2
31 (33)
42 (49)
1
50 (46)
35 (32)
0
15 (12)
6 (5)
Subgroup Analysis [Click on charts to enlarge] :
Year 4
Year 8
Commentary:
About one third of year 4 students and three fifths of year 8 students were able to provide at least two sound reasons behind their choice of a lemon squeezer. Differences between year 4 and year 8 were not particularly large. There were minimal gender differences. Performance was similar in 2004 and 2008.