As a science teacher, I recognize the need to focus on STEM education. The new National Science Framework will soon become National Science Standards. When reading the Framework, I was impressed with its focus on Engineering. Please join in these “STEM snacks” discussions and share your ideas.
My science curriculum requires students understand how forces act upon structures. Students first studied forces. Students created bridges using milk straws, masking tape, and two 3x5 cards. Each bridge had to span 25 centimeters. Bridges were put on a scale to measure their mass. Bridges then were laid across the span and weights placed in the bridge center. Students measured the mass their bridge supported. One bridge held 1.8 Kg. - I was impressed! Students compared their bridge mass with the mass it held using a ratio. The goal was to have the lowest ratio in the class.
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