I request a small donation if instructors assign my courseware to their classes. Donations help defray Ginger's effort to maintain the modules and keep them available. They don't cover development costs. Suggested donation:
- $ 2.00 per college student assigned one module
- $ 4.00 per college student assigned two or more modules
Use PayPal to send donations to email@example.com :
If you're not going to donate anyway, please assign the courseware to your class anyway, and maybe I'll pick up some ad revenue.
No donation for:
- K-12 students (pre-college)
- Fractal simulators and Differential Equations Plotter
- The Habitable Planet simulators (belong to Annenberg)
For other organizational use, please email Ginger Booth and describe the intended audience.
If you cannot donate, please send a postcard of your region as payment in full. We've received some cool postcards from overseas!
Donators may request a release to install locally for faster access or customizing the assignments, etc. Please email me a list of the software you need.