I teach math at a high school (and have taught CS in the past, before budget cuts got rid of the program). This article is good advice, but a couple things from

I teach math at a high school (and have taught CS in the past, before budget cuts got rid of the program). This article is good advice, but a couple things from my own experience: 1. Anything to be used in-class is a much harder sell than out-of-class. The cost of a wasted lesson is much higher than the cost of your product. 2. As in #1, the most important thing to a teacher is time. We'll probably trade some of our own money to save time. We'll definitely try to convince our bosses that the department needs a subscription to "Bob's Keyboard Accelerators" if we think it is a good product. On the other hand, though, that means you have a daunting design challenge. What's fast and easy for a 25-year-old teacher isn't necessarily fast and easy for a 55-year-old teacher, although we do help each other out. 3. Do it out of altruism, do it to reduce stress in people's lives, and do it for the students, but please do it for the money also. If you make a good product, I'd like to keep using it. I'll try to answer questions downthread when I have a few moments between tasks, if it helps people.