### Dr. Sarah's
Sketchpad 4 Classroom Activities and Explorations

Taking Full Advantage of Sketchpad 4 - Why You Can't Live Without It
with Brian Felkel, the 15th International Conference on
Technology in Collegiate Mathematics Proceedings
### Poincare Disk

From the Sketchpad 4 folder, open up Sketchpad/Samples/Sketches/Investigations/ Poincare Disk.gsp

Why Study Hyperbolic Geometry?

One could demo these to a class, or have students explore the Sketchpad
files...
### Other Resources

Geometric Constructions

Euclidean, Spherical and Hyperbolic Geometries

Activities for a
Geometry for Future High School Teachers Course

Geometry of the Earth and Universe -
From the Classroom to Current Research

Taxicab Geometry
Activities in Sketchpad

Dynamic Visualization Resources

Dynamic Geometry activities on the sphere

1) Brad Findell's Elliptic/Spherical Toolkit for Sketchpad

2)
Walter Fendt's Java Applet