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Olympic Records

Stage: 3 Challenge Level: Challenge Level:1

Why do this problem?

This problem gives students the opportunity to make sense of graphical data and challenges them to apply their own knowledge about athletics to explain and interpret key features of the graphs.

Possible approach

Arrange the class in groups of three or four, and give each group the ten graphs.
(Alternatively, you could show the graphs using this PowerPoint presentation.)
 
"You need to look at the graphs and work out which Olympic athletics event each graph represents. The graphs all show how the Olympic records have changed since the modern Olympics began."
 
Give the groups plenty of time to look at all the graphs, discuss them and start to make sense of which events they could be. Towards the end, ask them to write down a list of the events.
 
Collect the lists from each group. 
 
"Most of you thought graph 1 was ... and a few groups thought it was ... or ...
Does anyone have any convincing reason why it might be ...? Or why it might NOT be ...?"
 
Go through the graphs in this way to draw out the key points of the graphs and the convincing reasoning each group came up with. This list has the ten events that actually generated the graphs (although not in order!)
 
If a computer room is available, groups may wish to look up Olympic record data online to check which event gave rise to each graph.
 

Key questions

What can you deduce about the event if the record increases/decreases over time?

Possible extension

Ask students to carry out some extra research in order to explain unusual features in the graphs, such as:
  • Drastic changes
  • Long gaps
  • Absence of data in the early twentieth century
  • Records that go both up and down

Possible support

Hand out this list of events and ask students to match them to the ten graphs.