Density and Pressure: Probing Questions
Whether you are looking for a question to stimulate discussion in lesson, or a challenge at the end of a homework, then hopefully you will find these useful.
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Convince Me That... keyboard_arrow_up
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I use Convince Me That questions lots in my lessons and homeworks. Providing students with a statement and challenging them to come up with as many different ways of convincing you as possible can lead to some fascinating discussions. The different ways of seeing the same thing can also help improve the depth of students’ understanding. Thanks so much to the Thornleigh Maths Department, in particular Erica Richards, Anton Lewis and Gareth Fairclough for helping me put these together, and we will endeavour to keep adding more!
200N spread over an area of 10cm2 will produce twice as much pressure as 400N spread over 40 cm2.
Volume = Mass ÷ Density
Standing on one foot will result in a greater pressure than standing on both.
Standing on one foot on the moon would result in less pressure than standing on one foot on the Earth’s surface.
Gold has a greater density than plastic.
If a liquid has a density of 0.03 g/ cm3 then a cube with sides of 1m which is filled with the liquid would have a mass of 30kg.
VI3 Treatment keyboard_arrow_up
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We devised VI3 Treatment as a versatile way of giving students meaningful follow-up work at once we have marked their homework. The idea is that students are challenged to come up with 3 things with certain constraints. These are ideal to use as an extension for students who have got everything correct, and also as further purposeful practise for students who have got a particular question wrong. Use the ideas below and adapt them accordingly, using different numbers where appropriate. Either mark them yourself or better still, get other students to do it. Thanks so much to the Thornleigh Maths Department, in particular Erica Richards, Anton Lewis and Gareth Fairclough for helping me put these together, and we will endeavour to keep adding more!
Write 3 pressure questions which would have an answer of 100N.
Look up the density of three 3 materials and write a question for each of them.