http://hechingerreport.org/deeperlearningstudy/
I don't know exactly what "deeper learning" is, and it sounds like this author isn't sure how it's special, either. But some research by AIR suggests that maybe "deeper learning" schools are getting some better results. There's a possibility that the results they're seeing are caused by confounding variables, but I think one thing is likely: "deeper learning" is well-poised to be a new buzzword in education, even though most people using it won't know what makes it special.