Modeling. That seems to be the new buzz word in physics teaching these days. These teachers are getting a first hand instructions on this teaching technique.
Still, I can't help but to think that this is all "... just a little bit of history repeating", as Shirley Bassey once said. I could have sworn that this approach of having the students try to understand physics via looking at how things behave isn't new. I think Leon Ledermann has been pushing for something like that for years. It doesn't, however, detract from the technique, and if it works, more power to them. I personally think this is definitely a worthwhile line to pursue rather than dumping onto the students a bunch of equations that they can't digest.