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Recently UpdatedDecimal Sequences Recognise and continue sequences that involve decimals. So far this activity has been accessed 37 times and only 1 person has earned a Transum Trophy for completing it. |
Helicopter ViewA video for a teacher to use in a Mathematics lesson showing how a distance-time graph can be constructed from a series of photographs.The 'photographs' of the situation which are displayed side by side promote a good understanding of the concept of a distance-time graph. They make it clear that the passage of time is shown on the horizontal axis and the distance travelled on the vertical axis. Further 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 video above have a look at some other distance-time graphs for students to interpret. You could also try answering some questions in the Travel Graphs online exercise. |
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🏁 Animal Race 🏁Teacher: Press START to begin the race! Watch the three animals race across the track. They run at different speeds and may stumble at the hurdles. Your students' task is to sketch a distance-time graph for each animal showing their progress during the race. I have found this difficult to do even at the slowest speed but it can be fun trying. Graphs might be more accurate if students work in teams of three, each recording a different animal then combining results to produce the composite graph. Adjust the zoom and scroll values for this page so that your projected image either shows or hides the graph that appears below the race track. Time: 0.0s
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Rabbit (Fast, but gets tired)
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Turtle (Slow and steady)
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Fox (Medium speed, careful)
Distance-Time Graph |
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Teacher: When you have finished trying to draw a distance-time graph from the animated image of the race, you could encourage your class to do the complete opposite and describe a race based on its graph. You could do this using the graph above—perhaps by running the race yourself before turning on the projector—or alternatively, you could try the Hurdles Race. That can be great fun, especially if you choose the right character to be the commentator. Curriculum ReferenceSee the National Curriculum page for links to related online activities and resources. |
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