hlachlne instruction would per- mlt each student to proceed at his orvn rate
This may be true, but can a modern machine or AI, on its own, give a detailed and personalized explanation of why the student was incorrect? For instance, in terms of music, I do not believe a machine can explain the nuance and tone of a passage. It may be able to play a professional recording, but in my opinion, music-making, especially at an enriching, educational level, should be a creative process, not a reductive, emulative one.
Furthermore, there is the problem of the expenses associated with these technologies. Let's say, in 2019, a machine or software is created that can grade music theory assignments with 99% accuracy. How long would it actually take for a significant number of schools to adopt such an AI? While wondering how great it would be to have such a device, it is simply not useful to pretend that it is already here.
Beyond Scantron multiple choice graders or online assignments or videos, I rarely see machines that take the teacher's role. No machine could do everything a human teacher does in this day and age.
Perhaps I extrapolated too much from this article. However, in my mind, when I see someone talk about "machine learning" or "machine teaching," I think of neural networking, big data, and Google Deep Mind.