First up, I think educators should act like coaches, literally. We should be coaching our students in the learning process, not pretending we know what they need to know now, let alone in 10 or 20 years. More about this on my Vision page.
Technology and culture are constantly changing. Learning, however, doesn't really change. Neither do the fundamentals of how great teachers engage students. The specific methods teachers use to implement those fundamentals does sometimes change as new tools and techniques are developed. As teachers, we should adapt alongside our students as these become available. Our focus, however, should remain firmly on the fundamentals rather than on the tool or technique du jour.
I believe we have an imperative to continually examine how we help students learn. Taking guidance—from our students' lives and from neurological research on the actual mechanisms of effective learning—is in my opinion, the only ethical way to teach.
[Portrait by Joon Ho Park, one of my students in 2013-14]