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Designing Medical Devices to Extract Foreign Bodies from Ears

Designing Medical Devices to Extract Foreign Bodies from Ears
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Students learn the engineering design process by following the steps, from problem identification to designing a device and evaluating its efficacy and areas for improvement. A quick story at the beginning of the activity sets up the challenge: A small child put a pebble in his ear and we don't know how to get it out! Acting as biomedical engineers, students are asked to design a device to remove it. Each student pair is provided with a model ear canal and a variety of classroom materials. A worksheet guides the design process as students create devices and attempt to extract pebbles from the ear canal. This engineering curriculum meets Next Generation Science Standards (NGSS).
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Teaching Duration
30 minutes
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