Saturday 23 October 2010

Year 6 Explore angles and Investigate Triangles...

What is proof?

Proof in mathematics means that a convincing demonstration has been carried out mathematically, using logical steps. Mathematical ideas are tested several times to see if they hold true in any situation, then a statement is made. The statement that is provided is often called a theorem.

In our case we are looking at the angles in a triangle. The theory is that the sum of the angles in a triangle equal 180°.

Some Year 6's decided to investigate and test the theory –

The enquiry questions were:

  • Do all the angles of a triangle add up to 180 degrees no matter how you draw it? Can you write up your findings?
  • Explain your methods (Say what and how you did it)
  • How you arrived at your answers?
  • Record your results as evidence to support your conclusions (What you found out)
  • What conclusions can you draw from your results?
Here are useful links from the web to help you with your investigation report.  Click on Exploring angles within a triangle and also scroll down and follow the links for the interative games.  See below. (The video sounds a bit robotic! However it is interesting kids!)

Shape Classification - Interactive learning game


So year 6   Did you take on the challenge and explore? What did you find out?  Let me know leave your comments...

Hey try out these Triangle Teasers. How many can you see?








7 comments:

  1. Holly,Ellise and Ellie-Bree05 November, 2010

    We think there is 21 triangles in the top one!

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  2. i think there is 18 triangles.

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  3. Sophie and Lauren05 November, 2010

    I think there are 21 triangles in the top one !!!!!!!

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  4. Its actually funny to listen to everyone saying how many triangles there are

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  5. I think there are 24 for the first one !

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  6. i think there is 24 triangles in the top one !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

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  7. i think there is 24 triangles inthe top one!

    ReplyDelete