Pythagoras' theorem and trigonometry

Essential Mathematics Year 9

Downloadable Lesson notes

Chapters

Welcome

Learning objectives

Recap of past learning

His theorem ... or someone else's?

The longest side of a triangle has a name!

Example 1: Pythagoras' Theorem

What is an exact value?

Using the calculator to show surds

Example 2: Pythagoras' Theorem

Final words

Description

This is the first video in the Year 9 series looking at Pythagoras' Theorem and right angled triangles. This video is really an introduction to who Pythagoras was and the formula he (probably didn't) come up with. I look at some basic examples of using the formula and how you might want to do it another way! The theory is explained in an easy to understand way.

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