Monthly Archives: April 2010

The Shape of Analysis Part I

We did the “extraction of caffeine from tea” and “extraction of caffeine from beverages” this spring in the introduction to chemistry course. The caffeine extraction lab is one of my standard experiments and seems to be adaptable to different levels of students. For the analysis of the students’ extracted caffeine we did TLC which is […]

The Hand is Smarter than the Eye

This past week we did the stereochemistry modeling activity during the lab period. This time it worked out that the activity was scheduled after the first class period on stereochemistry. I like the students to make the connection between models and drawn stereochemistry dashed-wedged representations as earlier as possible. The idea, in my mind, is […]