Ellipses can be fun!!

This GeoGebra sketch shows a step-by-step creation of an ellipse.

I am a strong supported of GeoGebra in the classroom. Although it has a steep learning curve, its capabilities and utilities make that learning worth it. Keep in mind that you only have to create a file once. You can use it repeatedly, and modify and adapt it at will.

The complete file is at http://ggbtu.be/m2625435