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Difference of Two Squares – Demonstration

Difference of Two Squares – Demonstration This resource provides animated demonstrations of the mathematical method. Check animations and delete slides not needed for your class. Difference of Two Squares. Area =. Area =. This rearrangement shows how we can factorise a square that

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Difference of Two Squares – Demonstration

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  1. Difference of Two Squares – Demonstration This resource provides animated demonstrations of the mathematical method. Check animations and delete slides not needed for your class.

  2. Difference of Two Squares Area = Area = • This rearrangement shows how • we can factorise a square that • has had another square • subtracted from it. A ‘perfect’ square: We subtract another square: What is the area of the new shape? What is the difference of two squares?

  3. Difference of Two Squares Area = Area = = • This rearrangement shows how • we can factorise a square that • has had another square • subtracted from it. A ‘perfect’ square: We subtract another square: What is the difference of two squares?

  4. Difference of Two Squares Area = Area = = If we expand:

  5. EXAMPLE Factorise each expression by sketching the difference of two squares.

  6. EXAMPLE Factorise each expression by sketching the difference of two squares.

  7. Difference of Two Squares DEMO We need to identify one square subtracted from another. Factorise:

  8. Difference of Two Squares DEMO We need to identify one square subtracted from another. Factorise:

  9. Difference of Two Squares DEMO We need to identify one square subtracted from another. Factorise:

  10. Difference of Two Squares DEMO YOUR TURN We need to identify one square subtracted from another. Factorise: Factorise:

  11. Difference of Two Squares DEMO YOUR TURN We need to identify one square subtracted from another. Factorise: Factorise:

  12. Difference of Two Squares DEMO YOUR TURN We need to identify one square subtracted from another. Factorise: Factorise:

  13. Difference of Two Squares DEMO YOUR TURN We need to identify one square subtracted from another. Factorise: Factorise:

  14. Difference of Two Squares DEMO We need to identify one square subtracted from another. Factorise:

  15. Difference of Two Squares DEMO We need to identify one square subtracted from another. Factorise:

  16. Difference of Two Squares DEMO We need to identify one square subtracted from another. Factorise: Why a positive?

  17. Difference of Two Squares DEMO YOUR TURN We need to identify one square subtracted from another. Factorise: Factorise:

  18. Difference of Two Squares DEMO YOUR TURN We need to identify one square subtracted from another. Factorise: Factorise:

  19. Difference of Two Squares DEMO YOUR TURN We need to identify one square subtracted from another. Factorise: Factorise:

  20. Difference of Two Squares DEMO YOUR TURN We need to identify one square subtracted from another. Factorise: Factorise:

  21. Difference of Two Squares DEMO YOUR TURN We need to identify one square subtracted from another. Factorise: Factorise:

  22. Difference of Two Squares DEMO YOUR TURN We need to identify one square subtracted from another. Factorise: Factorise these expressions into two brackets. Factorise & simplify these expressions.

  23. Difference of Two Squares DEMO YOUR TURN We need to identify one square subtracted from another. Factorise: Factorise these expressions into two brackets. Factorise & simplify these expressions.

  24. Difference of Two Squares DEMO YOUR TURN We need to identify one square subtracted from another. Factorise: Factorise these expressions into two brackets. Factorise & simplify these expressions.

  25. Questions? Comments? Suggestions? …or have you found a mistake!? Any feedback would be appreciated . Please feel free to email: tom@goteachmaths.co.uk

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