# Distance Time Graphs

Describe the distance time graphs below

#### Xmas Tree Trim

Use the lights provided to decorate each of the Christmas trees so that no two trees are the same. So far this activity has been accessed 11069 times and 2198 people have earned a Transum Trophy for completing it.

## Distance Time Graphs

#### A visual aid for a teacher to use in a Mathematics lesson showing distance time graphs.

If your students are new to distance-time graphs you might like to begin with the 'Helicopter View' animation.

Class discussion might illuminate the fact that the steepness or gradient of the line graph is related to the speed of the vehicle. A positive gradient indicates a velocity away from the reference point while a negative gradient represents a velocity in the opposite direction. A gradient of zero represents the vehicle coming to rest.

In the real world a more accurate graph of the situation would be a smooth curve rather than a number of straight lines.

After viewing the graphs above have a look at the Hurdles Race for some fun.

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