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Continued… Keystone Colloquium, December 2, 2000 Human Body Science |
| What do we already know? To help launch investigations of involuntary muscles, Molly asks each group to brainstorm a concept map of ideas, associations, and knowledge about the heart and circulatory system. | |
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With a balloon, aquarium tubing, and a small funnel, Beth and the others assemble homemade stethoscopes. They really work! |
| Investigations begin, and Paul listens to his heart. Susan and Molly urge the group to consider the sorts of things we can find out about body parts that we can neither see nor control. |  |
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John and Celia experiment to find the best place to hear heart sounds. |
| Teamwork is required when Jo wants to know whether her heartbeat is more audible from the back. |  |
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Michelle's group discussed why it's easier to hear heart sounds from certain locations. |
| Using a "real" stethoscope for comparison, Jo listens for sounds at a pulse point. |  |
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Paul finds he can hear a pulse in his head, as the heart delivers blood to the brain. |
| Sometimes a model is the best way to visualize a complicated concept. This one is easy to make, and demonstrates the role of valves in the pumping action of the heart. |  |
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Continuing the inquiry in the Unisys Teacher Technology Center, Paul pursues his question of why brain tissue is called gray matter. He had several hypotheses, but he learned that brain cells have dark nuclei, causing the whole mass to appear gray. |
| Michelle uses the evidence on an interactive site to diagnose real heart conditions. |  |
At the close of the session, many participants planned to continue their explorations by visiting body-related museum exhibits including Bioscience and the Heart, It's All in Your Head (an exhibit about the brain), and Sports Challenge.
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| The Franklin Institute gratefully acknowledges the generous support of the National Science Foundation and Unisys Corporation. | |||
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The Franklin Institute is the Demonstration Site for the
Eisenhower
Mid-Atlantic Consortium, providing science and math
resources for teachers.
This material is based upon work supported by the National Science Foundation under Grant No. 9819641. © 2003. All rights reserved.
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