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Design and Evaluation of DIO Construction Toolkit for Co-making Shared Constructions

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A dome-shaped tangible toolkit called DIO lets 8–12 year olds wire physical modules together and program them with an AR smartphone; modules use computer-vision 3D markers and Bluetooth Low Energy where input modules act as BLE centrals to control multiple peripheral outputs. Built modules include button, sunlight detector, knob, microphone, motion sensor and an adder, driving bulb, colorful bulb, fan, speaker, number display, emotion display. A year of iterative design and mixed-method evaluation against six research goals shows it supports multi-user constructions and shared constructionist learning.

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