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These are the Transum resources related to the statement: "Pupils should be taught to interpret the gradient of a straight line graph as a rate of change; recognise and interpret graphs that illustrate direct and inverse proportion".

Here are some specific activities, investigations or visual aids we have picked out. Click anywhere in the grey area to access the resource.

- Gradient of a Line Practise the skill of finding the gradients of straight lines by counting squares and dividing rise by run.
- Graph Paper Flexible graph paper which can be printed or projected onto a white board as an effective visual aid.

Here are some exam-style questions on this statement:

- "
*At depths below 900 metres, the temperature of the water in the sea is given by the formula:*" ... more - "
*(a) Sketch a graph on the axes below left that shows that \(y\) is directly proportional to \(x\).*" ... more - "
*At a constant temperature, the volume of a gas \(V\) is inversely proportional to its pressure \(p\). By what percentage will the pressure of a gas change if its volume increases by 15% ?*" ... more - "
*The graph shows the temperature (\(T\)) of an unidentified flying object over a period of 10 seconds (\(t\)).*" ... more

Click on a topic below for suggested lesson starters, resources and activities from Transum.

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