Molecular Geometry Aerobics
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Molecular Geometry Aerobics How to get students moving in structure and bonding Bonnie Bloom Hilliard Davidson High School
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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 - PowerPoint PPT Presentation
Transcript of Molecular Geometry Aerobics
Molecular Geometry Aerobics
How to get students moving in structure and bonding
Bonnie BloomHilliard Davidson High School
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
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
Students need to be able to draw Lewis Structures
Students work with molecular models
Molecular Geometry AerobicsStep 1—drawing the structure
If it is cold or rainy we stay inside
Step 2—become the molecule
C3H8
H2O
Are these molecules polar??
• Students have trouble thinking “three-dimensionally”
• Three-dimensional model is quick and easy to make
Tape and some string…
Moving into two dimensions…
What about this molecule?
And what about these molecules?
Now it is your turn…
• Necessary Equipment– Periodic tables– Sidewalk chalk or glass markers– Willing students– Tape and string
The basic shapes
• Linear Trigonal planar Tetrahedral
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
