Yes, but keeping students engaged is often a euphemism for entertaining them in class. It is extremely difficult, and in many cases impossible, to mix true education and entertainment appealing enough to drag them away from what they habitually do otherwise. If you can accomplish it, that's great, but in general I suspect cell phone bans and wi-fi shutdowns are more effective than less coercive measures, especially in K-12 where students aren't there by choice. I know the fable about the wind and the sun trying to get the person's jacket off, but unfortunately no teacher is comparable to the sun.