Heuristic Play. I like the concept of Heuristic play. Though not a new concept, it is the first time that someone has really made a term for it. This kind of play is very powerful for young children that are just trying to figure out how everything fits together literally.
Dinosaur Small World Play (from Isabella Plains Early Childhood School via FB; https://www.facebook.com/IsabellaPlainsEarlyChildhoodSchool/photos/a.365267700172127.51959.364551280243769/619214064777488/)