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Molecular Geometry Aerobics

Molecular Geometry Aerobics. How to get students moving in structure and bonding. Bonnie Bloom Hilliard Davidson High School. Why bother?. An interactive way of practicing Lewis Structures and molecular geometry A way to reinforce and assess student learning

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Molecular Geometry Aerobics

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  1. Molecular Geometry Aerobics How to get students moving in structure and bonding Bonnie BloomHilliard Davidson High School

  2. Why bother? • An interactive way of practicing Lewis Structures and molecular geometry • A way to reinforce and assess student learning • More fun than a worksheet or a quiz or even dry-erase boards

  3. Correlations to Standards • U. S. National Science Educational Standards • Grades 9-12 Content Standard B: Structure and Properties of Matter • Ohio Science Standards • Grades 11-12 Physical Sciences Benchmark A—Nature of Matter

  4. Students need to be able to draw Lewis Structures

  5. Students work with molecular models

  6. Molecular Geometry AerobicsStep 1—drawing the structure

  7. If it is cold or rainy we stay inside

  8. Step 2—become the molecule

  9. C3H8

  10. H2O

  11. Are these molecules polar?? • Students have trouble thinking “three-dimensionally” • Three-dimensional model is quick and easy to make

  12. Tape and some string…

  13. Moving into two dimensions…

  14. What about this molecule?

  15. And what about these molecules?

  16. Now it is your turn… • Necessary Equipment • Periodic tables • Sidewalk chalk or glass markers • Willing students • Tape and string

  17. The basic shapes • Linear Trigonal planar Tetrahedral

  18. Thank you to • The AP Chemistry classes of 2004-2005 for graciously re-enacting molecular shapes • The person on the Chemistry or AP Chemistry listserve who provided the tape/string idea • Marilyn Kuhlman for the cookie sheets and felt atoms

  19. Bonnie BloomHilliard Davidson High School5100 Davidson RoadHilliard OH 43026bonnie_bloom@fclass.hilliard.k12.oh.us

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