One embodiment of the present invention includes a signaling device
capable of assisting a child to develop a tooth brushing technique. The
signaling device includes a toothbrush and an extension device, which is
affixed to the tooth brush. The extension device is coded with a
plurality of patterns that can be converted into motion and orientation
information associated with the tooth brush in a tooth brushing session,
and the motion and orientation information is further compared to a
predetermined set of expected conditions that correspond to the tooth
brushing technique to determine a reward tailored to promote learning of
the tooth brushing technique.