Kinetic Energy Using The Singapore Bar Model

e=mc2andallthat

I think the Singapore Bar Model is a neat bit of pedagogy that has great potential in Science education.

Essentially, the Singapore Bar Model uses pictorial representations (often in the form of a bar or line) to help students bridge the gap between concrete and abstract reasoning. I wrote about one possible application here.

A recent discussion on Twitter started me thinking about if it could be applied to kinetic energy.

For example, how would you explain what happens to the kinetic energy of an object if its velocity is halved?

Many students assume that the KE would halve as well, instead of reducing to a quarter of its original value.

How can we help students grasp this slippery concept without using algebra? Algebra would work fine with your higher sets, of course, but not necessarily for other groups.

This gives a clear visual representation of the fact that…

View original post 77 more words

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About e=mc2andallthat

Physics teacher of over 20 years experience who still enjoys teaching (well, most of the time anyway). He lives in London with his lovely wife and insane cat. Please follow him on Twitter @emc2andallthat
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