Stage: 2 Challenge Level: 
It would be a good idea to try You Tell the Story before tackling this problem. If possible, it would be great to introduce the class to these ideas using a sensor, which gives an output on a distance/time graph by recording how far an object is from the sensor. (It can also be linked to a computer so that the display can be viewed easily by all.) The idea of this problem is for children to get a feel for what a distance/time graph can tell them, and this is likely to involve a great deal of discussion in pairs, groups and as a whole class.
Here are some graphs for you to try to reproduce. Can Mr Pearson create the same graphwith different walks? Can you describe what things you can change and what things have to stay the same?
Graph 1
Graph 2
Graph 3
Graph 4
Graph 5
Graph 6
Time. Games. Interactivities. Acceleration. Visualising. Learning through exploration. Length/distance. Practical Activity. Compound transformations. Graphs.
Published March 2006,April 2006.
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