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Demographer Bernard Salt has unveiled his report `Super connected jobs', commissioned by nbn, which looks at how jobs will change as we move further into the digital age.

Mr Salt says regardless of how technology changes, we are always going to need doctors, accountants, dentists, urban planners and teachers.It's just the way they conduct their work that might change.

it's not just about technical skills. It's about attitude - being adaptable and open to change."Lean into tech. Embrace it, learn it, master it, command it, surf it," he said.

But that's the crux of the problem right there: lecture-demonstrations. Although there's a tech component here that makes this appear innovative, that's really a matter of form, not content, that's new. There's actually very little in the videos that distinguishes Khan from "traditional" teaching. A teacher talks. Students listen. And that's "learning." Repeat over and over again (Pause, rewind, replay in this case). And that's "drilling."

They point to studies that find while students receive these sorts of videos positively, they are actually learning very little or learning very superficially

Physics teacher Frank Noschese, for example, contrasts the video of Khan's explanation of force with a video documenting his students' exploration of force through hands-on experimentation.

In no education system around the world where I have worked has the introduction of new technologies made teachers less vital or central to the teaching and learning process. On the contrary: As dust settles after new equipment arrives in schools (and eventually begins to work, more or less), and the initial hype around the potential for quick 'transformational change' subsides, the role of the teacher is almost always more central, indeed fundamental, than it was before the introduction of technology.

New technologies can, and no doubt eventually will, replace many of the routine administrative tasks typically handled by teachers, like taking attendance, entering marks into a grading book, etc

Machines (perhaps even "teaching machines") may also handle some of the routine, low-end cognitive tasks (e.g. posing multiple-choice questions and grading tests) that teachers currently perform