If you're a teacher in the Greater Washington DC area, you may want to check out the program offerings of PACE School of Mathematics-they are located in Herndon, VA. They offer nearly fifty classes in everything from problem solving to Rocketry and Aviation Science for Kids. The list of classes, alone, would fill an entire post. You should check out their science and math enrichment courses at their website http://www.pacemathematics.com or give them a call at 703-232-1669. If you have a student who you realize would benefit from their classes, but may have financial difficulty, please give their Community Liason, Tai Smallwood, a call to inquire about scholarship resources.