No, it would probably have been a fine camera like this -
That or a similar Beattie-Coleman, in either case the cameraman would have been a pro, the lens would have been excellent, and the film format would have been equivalent to a 6x6 medium-format, all in all nearly Hasselblad-quality.
These were specially made high-volume portrait cameras using 70mm bulk fim, these were standard for the usual “picture day” portraits.
As for the “teacher camera”, in those days the odds would have favored a 126 Instamatic, not the 110 (much smaller film format), as the 110’s didn’t come in until a few years later (1970’s). In any case, this is almost certainly not an Instamatic picture. Due to film and flash costs (bulbs or flashcubes then) it would have been cheaper to call in the pro with the Camerz.
Might it have been taken on a Yashika? They were very high quality and popular at the time.