"Riemann Sphere" for asymptotic graphs

Topic:
Sphere
Stereographic projection of the plane onto a sphere. This can be an excellent activity to deepen understanding of asymptotes.

Draw these graphs on balloons!

Lesson idea

- Start with three points defining a circle from my other geogebra file. - Use this file to introduce idea of sketching graphs with asymptotes. - Draw the graphs on balloons!
Image