The lesson takes the user through the principles of the theorem by demonstrating two ways to calculate the area of a square. The two ways of calculating area are the proof of the theorem and the students are shown how the formula is derived.

The interactivity in this sample is frequent. The user is constantly being involved in the content by interacting with the objects on the screen. Try it out for yourself to see how eLearning can bring the user into and involved with the content.