In sum, a good lesson design needs to be a balanced composition of instruction and construction, or as Dewey would say “construction through instruction” (Dewey 1913, Knoll 1993). A lesson design should answer, How students can experience certain situations, and how teacher can enable this experience. A good learning design is in what schools mostly fail until today. The How, e.g. the instruction to execute constructivist learning is either too open (free construction only) or too detailed (instruction only)