With the new systems integrated in school buses today, you can’t give or get enough training. New school buses, literally, have more computing power that the Apollo spacecraft that went to the moon in 1969.
The engine, the transmissions, and the brakes all have their own software. Camera systems, retarders, and the list goes on with systems that have frequent software changes and have to be updated on a regular basis.
School bus technicians depend on school bus component manufacturers to provide instruction and training for these complicated systems. These classes that the technicians need to take provide great systems information on how to diagnose and repair their buses, and give them a good networking resource. With the proper knowledge, techs can determine what needs to be dealt with right now (overheating) and what can wait until the bus is back at home (ABS light on).
From the rookie to the most seasoned veteran, everyone needs all the knowledge they can possibly get – knowledge of experience and knowledge learned in tech classes.