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Teaching rate of change

Filed in Maths on June 11th 06 .

A guitar and a simple equation: f = sqrt(T/p) / 2L was all he needed.

He differentiated it and demonstrated the change in frequency if we adjusted the length (L), tension (T) and density (p) of the guitar strings. The sheer simplicity in the demonstration would make students fall in love with calculus. To borrow from mathematician lingo, it was straight out of the book!

I shall keep this idea in the back of my mind for the Rate of Change topic that is coming into the GCSE Higher syllabus in 2007.

From Sucre’s blog about being a trainee teacher somewhere in Singapore. There is no information about the author so I suppose this is a personal blog for friends. The front page for today, June 11th tells me that Sucre completed the training and is now looking forward to teaching in a school. I can certainly remember my first year of teaching full-time!

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