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        Grades

        K-4,13+

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        Auditory, Visual

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        Stream and Download


        Part of WGBH
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        Making Predictions about Ramp-Rolling

        In this video segment from Teaching Elementary Physical Science, teacher Heidi Fessenden guides her first-grade students to make predictions about what might happen when they roll two marbles of different sizes down similar ramps. Fessenden asks students to explain their logic, ensuring that they are really thinking and not just guessing. She wants to help students consider their prior experience and use their knowledge about how things move when making their predictions.

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