A directory of useful objects found on the web for teaching Maths.
http://www.mathsisfun.com/algebra/expanding.html
Assessment, Demonstration
The site explains how to expand brackets with algebraic expressions inside the bracket. It shows a number of examples with short video of slides and has a set of practice questions.
5 February 2013 Edit: 23 February 2014
User submitted, thanks to Manjeet Kaur
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