11. The system of claim 10 wherein the periodic data message includes data identifying a student associated with the respective ones of the plurality of student wireless communication devices.
10. The system of claim 1 wherein the controller in each of the plurality of student wireless communication devices is configured to automatically send a periodic data message to the instructor wireless communication device so long as the short-range communication link between the respective short-range non-network transceivers and the instructor wireless communication device is maintained.