There's also an arduino "teachers" mailing list.
Teaching with and about Arduino If you are interested in discussing issues related to using Arduino in education, please subscribe to the "Teachers" mailing list: https://groups.google.com/a/arduino.cc/forum/?fromgroups#!forum/teachers. This list is open to anyone interested in this topic, not just to professional educators
see the invisible, sort of.
"The best thing a child can do with a toy is break it !"