We describe the development and user testing of an iPad prototype for a new museum-based, interactive tabletop computer game called MakeScape Lite. The game lets learners-who have no prior formal experience in circuitry-build virtual circuits in a fantasy challenge scenario to (1) learn some basic circuitry concepts and (2) engage in basic engineering practices, such as problem identification, design, and iteration. In phase 1 of testing, we explored how children socially interacted to develop design goals when the game lacked explicit guidance about what to do. In phase 2, which we discuss here, we iterated the prototype with partially worked examples to offer more explicit guidance to children. We then studied video and game log data of students playtesting the game.
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