:Zzz
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Approach: Independent Level: Year 4 and year 8
Focus:   Constructing a graph 
Resources:  Bar graph in recording book, ruler
72KB

Questions/instructions:

Here are the number of hours animals sleep each day.
Finish the bar graph.
Make sure it has all the information that a graph should have.

Animal
Hours
(asleep)
Cow
7
Horse
5
Sheep
6
Human
8
Cat
13
Rabbit
10

[click on graph to enlarge]
 
% responses
y4
y8
Title:

“Hours animals sleep”
3
18
“Zzz”
1
5
title includes “per day”
0
8
Bars correct:
5
78
94
4
7
4
3
1
0
2
1
0
1
1
2
Vertical axis:
e.g. “Hours of sleep per day”
1
1
e.g. “Hours of sleep”
2
24
Horizontal axis:
e.g. “Animals”
2
26
Total score:
9–10
0
7
7–8
2
17
5–6
76
71
3–4
8
3
0–2
14
2
Commentary:
The majority of students (94 percent of year 8 and 78 percent of year 4) contructed bars accurately to represent the data. Almost no year 4 students and about 20 percent of year 8 students provided reasonably appropriate titles for the graph or axes. 
 
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