Bar graphs, step by step
One graph, three questions under it — the shape a bar graph worksheet has always had on paper.
The question
How many fewer chose swimming than chose running?
Our favorite sport
key:1 = 1 vote
Football:2 up→2 votes
Swimming:6 up→6 votes
Running:8 up→8 votes
Cycling:7 up→7 votes
Football:2 up→2 votes
Swimming:6 up→6 votes
Running:8 up→8 votes
Cycling:7 up→7 votes
2 votes
- Check the key first, every time. Here one square is one vote, so counting is enough — but that is a fact to check, not to assume.
- So the counts read straight off: Football 2, Swimming 6, Running 8, Cycling 7.
- Now the question, on the NUMBERS rather than the marks: Swimming is 8 − 6 = 2 fewer than Running. So the answer is 2 votes.
How it works.
- 01
Check the key first, every time. Here one square is one vote, so counting is enough — but that is a fact to check, not to assume.
- 02
So the counts read straight off: Football 2, Swimming 6, Running 8, Cycling 7.
- 03
Now the question, on the NUMBERS rather than the marks: Swimming is 8 − 6 = 2 fewer than Running. So the answer is 2 votes.