Two examples are given of rearranging an equation or formula to make a particular letter the subject. This is done by first considering each operation that was originally done to the required letter, and then reversing these operations.

Rearranging equations (MathsCasts)

These MathsCasts were produced by the mathematics support centres at Swinburne University, the University of Limerick and Loughborough University. They were part of a collaborative research project to develop high quality resources and investigate the effectiveness of MathsCasts to support mathematics learning. The full set of resources are available at http://commons.swin.edu.au/s/mathscasts MathsCasts are licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License

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Rearranging equations (MathsCasts)

Rearranging equations (MathsCasts)