ChemIONS

Dimensional analysis, the saving grace of all those expereinced and the bane of all those learning! As a chemistry teacher, I can attest that those student who use DA generally do better than those who do not. Speaking of using DA, American high school students taking AP Chemistry will soon have to take the College Board's AP Chemistry exam. On that test, if a performance event answer is worth 3 points - 1 point is for the correct number and two points for showing your work for getting that correct number - and 0 points if DA is not used. Back to the original topic, how can chemIONS better serve the chemistry community.... If I had the perfect answer for that one, I would be working for grou.ps! This is what I suggest: Those working in the chemical fields: at least once or twice a month, drop a note on what is new, interesting, or a what is a good puzzle. Those teaching chemistry: at least once or twice a month, post a note on something successful that you found for your students (or something that does not work well), test taking suggestions, good/fun questions, etc.... Those learning chemistry: As often as needed, ask some of the experts in this community for their help, thoughts, or suggestions. Everyone - a good puzzle or joke always works! Bill Mac