Monday, 11 May 2015

Pythagorean Theorem

Good evening,

Today at maths time, one of the groups was learning about Pythagoras' theorem to a deeper level.

Firstly, we learnt that several civilisations (Babylonian, Indian and Chinese) appear to have known about the relationship between the sides in a right-angled triangle before Pythagoras (c.859 - c.800 BC).  It is believed Pythagoras may have been the first to prove it, but we cannot be sure because he wouldn't allow people to write down any of his teachings.

So what is the Pythagorean Theorem?


So we looked at how you would use it to find the length of c when you knew the length of sides a and b:
http://www.mathsisfun.com/pythagoras.html (both pictues)

We then used our algebra skills to use the formula to solve problems when we already knew the hypotenuse (c), but want to work out either a or b.  Here's how we did it:


The next step for the group will be looking at practical applications for the theorem (which is used a lot in 'real life').  To do this, students will be completing this webquest.

1 comment:

  1. Hello, my name is Amy from St Mary's school in Hastings. Thank you for the handy tips. When we go to learn about It I will remember to come onto your guys class blog. These tips will be very handy.
    Amy

    ReplyDelete