As I was touring Suomenlinna Sea Fortress off the coast of Helsinki in July 2016, I encountered a group of children excitedly playing and engaging with three actors portraying the noble people of the late 1700s. The king’s crown had been lost and it was up to the children to help Gustav III find his missing diadem. Although I couldn’t quite follow the Finnish storyline, there were a few things that were quite clear to me. First, the children were doing the work; they were in charge of finding the clues and the adults were not providing much assistance except when a performance was needed. Second, the engagement level was probably the highest I’ve ever seen for a group of children spending a summer day at a museum. “Kuningas ja Kadonnut Kruunu” (The King and the Lost Crown) represented the epitome of Pasi Sahlberg’s first paradox from Finnish Lessons (2011 and 2015): “Teach Less, Learn More.” Part of the “Teach Less, Learn More” phenomenon ...