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Unregistered 07:23 AM 01-07-2009
Simple solution---put a timed buzzer on door. When door opens buzzer and or flasher light goes off in room which always has a teacher or proctor in it.

Have the buzzer turned off during 6-10 am when kids are dropped off and 4- 7 when picked up to avoid "Crying Wolf" with the buzzer.

This can picked up at any Radio Shack for less than $50.