Students learn best by making things they care about and sharing the results with others. One crucial tool to promote this principle is the microworld, a concept developed by Seymour Papert. Defined as a “growing place for a specific species of powerful ideas or intellectual structures,” a microworld presents a small set of ideas in an explorable environment that allows the learner to recompose its ideas for their own personal expression. Hack Club’s Sprig is one such tool. Akin to...