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.
Arrange the class in groups of three or four, and give each group the ten graphs
"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.
What can you deduce about the event if the record increases/decreases over time?
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
You may wish to hand out this list of the events
and ask students to work out which belongs with each of the ten graphs.
Alternatively, this card sort activity
contains the ten graphs and the events on cards for students to match up.