Home » browsing by Topic Categories
Space and Geometry »
Topic: Circles
A Tangled Web, practise solving angles
Help Itzi the spider climb the clock to rescue his family! Solve cunning angle puzzles to reveal a path through each level’s maze of tangled webs and reach the goal. It’s sure to make your head spin!
- Basic angle rules
- Parallel lines
- Polygons
- Circle theorems
Buffon’s Needle simulation to generate Pi
A high quality Flash Animation to demonstrate Buffon’s Needle Theorem. Fire it up on your IWB and leave it running for a good while to get closer and closer to the value of Pi.
A great resource to use when introducing students to the surprising mathematics involving Pi.
Exploring the Diameter and Circumference of Circles
This multimedia mathematics resource demonstrates how circles can be found all around us. An interactive activity allows students to explore the value of pi by investigating the relationship between circumference and diameter. A print activity is provided.
How to derive the area of a circle
An animation that shows a circle opened into segments and arranged into a rectangle to illustrate how the formula area = πr^2^ can be derived.
