chemical structure drawing
It might be good to figure out a way students can submit chemical structure drawings as a web entry using a Java-based structure drawing program. Your interface would take the information and "beautify" it for presentation, and be able to see duplicate answers. Sapling Learning has developed a structure drawing tool for their online homework; it might be valuable to contact them and work out a collaboration. There are other possible tools that currently exist as well. Let me know if oyu wish to discuss further.
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Interesting idea!
We are planning to go in this direction by supporting images in questions.
The ability to 'draw' an answer/picture is intriguing. Do you see this as a "web only" feature? Or rather, what are your thoughts on making this compatible with text messaging or mobile devices?