I'm a maths teacher in Australia, and have been using a system over the past couple of years call "Maths Pathways" (it's only designed for the Australian Curric

I'm a maths teacher in Australia, and have been using a system over the past couple of years call "Maths Pathways" (it's only designed for the Australian Curriculum at this stage). I think of it as a personalised electronic text book, and after a bunch of diagnostic assessment, it provides the learner a choice of worksheets they are ready to learn next. Solves the problem of the massive disparity of ability levels that you get in a typical high school maths class. It totally doesn't replace the teacher in the classroom, but rather replaces the textbook (it's mostly worksheet-based, and not particularly interactive). But one key point, both from using Maths Pathways, and as a teacher in general, is that a lot of learners need a human to guide them through some of the problems. This is usually for confidence reasons rather than anything else, and ideally we move to students who can take more control of their own learning and solve their own problems, but in reality, a lot of students (for a lot of reasons) will take a lot longer to get there. I'd be fascinated if a chatbot interaction could pull this off if it were 'human' enough, but I suspect not (though that's probably my own bias).