Find out how school budgets work, and know who you're selling to.<p>If you intend to enter at the whole-school level, you'll probably be dealing with school managers or the school district, and annual software subscriptions are often in the range of hundreds of dollars, or greater. It can be tough to deal in this area (politics, 'preferred' partners, etc.).<p>Particular departments (math, science, history, etc.) have more limited capitation, but there's usually less bureaucracy. So if you're marketing toward a particular subject, it may make sense to approach a department head and find out what their needs and resources are.<p>(Note that this is not country-specific, so it really depends on where you are...)<p>In any case, you must know your market! Find out how much other educational software companies charge, attend expos, and (if possible) try to meet teachers or school managers as part of your effort to set a realistic (affordable) price.