Perfect squares and difference of perfect squares
Algebraic techniques
Essential Mathematics Year 9
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  Welcome
  Learning objectives
  Recap of past learning
  What is a perfect square?
  Lots of people stuff this up!
  Examples
  Do we always get three terms?
  What do you notice?
  Difference of perfect square
  Examples
  More examples
  Even more examples
  Final words

This is the second in the Year 9 Algebraic Techniques series looking at binomial expansion and factorisation. This video takes time to look at the difference of perfect squares and which binomial products lead to the difference of perfect squares (DOPS) and which do not. I take time to explain things clearly and use lots and lots of worked examples. There might even be some humour thrown in!

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