Yes, its seen as vocational training. Rather than teaching trig or how to apply it or what it means, you get how to display sine waves on a specific TI model.

Yes, its seen as vocational training. Rather than teaching trig or how to apply it or what it means, you get how to display sine waves on a specific TI model. I'm old enough that my vocational training in high school math classes was on the venerable yet new at that time TI-81. That vocational training was not terribly useful in university classes, the rot had not reached that high (at that time)