Why do this problem?
may be used as a good start to discuss about collecting data on a relevant topic. It offers pupils the chance to decide what method of collecting data they might use, and how they would like to display what they find out.
You might choose to begin by asking the children what competitive games they know, and what they know about them. You might choose to show some videos from the frequently updated Olympic website.
Tell me what information you want to collect.
How did you decide?
Who are you going to ask?
How will you know who you've asked?
Ask the pupils in what ways can they extend their data collection to take into account more information, and how they might display their additional findings.
Some pupils may benefit by having pictures of different games and sports to remind them of the key pieces of information about each.