Begin with some simple questions in order to find out what students know about pressure and so determine a starting point for...
Distinguishing–eliciting–connecting. How to:
Pressure and force are two distinct kinds of things. The words tend to be used interchangeably in everyday contexts but in...
When talking about pressure and forces be careful to distinguish between them. It is helpful to refer to:
Some pupils develop a picture of forces being carried, by the fluid, from cylinder to cylinder in a hydraulic machine.
Pupils will readily accept the idea of pressure existing in liquids because it is a familiar phenomenon. However they may have...
Even when you emphasise the air pressure explanation for familiar phenomena, problems can arise.
Almost any example that has one solid resting on another will tend to lead to thinking leading along the Wrong Tracks.
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