December 21, 2007
Texas Offers a Model for Training Math and Science Teachers
The program is about to go national, thanks to a big grant, but skeptics wonder if it is truly better
Many high-school chemistry students would probably love a teacher like Robert A. Gonzales.
During a class at James Bowie High School here last month, he asked his students to figure out the alignment of atoms within different molecules — using marshmallows. Put the tiny, white sweets, representing different atoms, on toothpicks, he suggested, and build a little model that shows the shape when charged atoms repel each other.
The students got busy, giggling. They were
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