__What is 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__

**Proof****.**

__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!)

Exploring Angles in a Triangle - Video

Exploring and Solving Triangles - Video

Shape Classification - Interactive learning game

Classifying Quadrilaterals - Video

We think there is 21 triangles in the top one!

ReplyDeletei think there is 18 triangles.

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

ReplyDeleteIts actually funny to listen to everyone saying how many triangles there are

ReplyDeleteI think there are 24 for the first one !

ReplyDeletei think there is 24 triangles in the top one !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

ReplyDeletei think there is 24 triangles inthe top one!

ReplyDelete