Pressure Plate Sensor Prototypes

5th graders have hand-coded their Stopwatch programs in Scratch, and now it’s time to build pressure-plate sensors that can activate their timers during a Track-and-Field race. Students are prototyping with MakeyMakey‘s, cardboard, wire, tinfoil, tape, and MakeDo connectors. Some early testing successes and failures are leading to new questions. Go engineers, go!

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