4 ms·
What about white boards?
by LaikaF 12y ago
What about white boards?
- nmrm2 12y agoThere are about a million exucses (er, reasons). Some of them are legit: older professors often have better handwriting at blackboard; chalk is sometimes better for certain drawings; left-hand smear; etc. I suspect the biggest reason is that, in math circles, blackboards have a much larger cool/nostagia factor.
- quacker 12y agoI have no hard data on this, but dry-erase markers seem to be used up more quickly than chalk. Chalk is also less expensive. As one data point: 48 sticks of chalk for $4.30[1] versus 12 markers for $7.74[2]. I'm not sure about the bulk-price comparison, or if colleges can get dry-erase markers for cheap. Although, many of my professors carried their own supplies as markers left in rooms were usually stolen. There could be a health comparison to be made between dry-erase marker fumes and chalk dust, but I know nothing about it off-hand. [1]: http://www.amazon.com/Crayola-Non-toxic-Anti-Dust-Chalkboards-50-1402/dp/B00DZS573Y http://www.amazon.com/Crayola-Non-toxic-Anti-Dust-Chalkboard... [2]: http://www.amazon.com/Expo-Chisel-Erase-Markers-80001/dp/B00006JNK2 http://www.amazon.com/Expo-Chisel-Erase-Markers-80001/dp/B00...
- j2kun 12y agoCrayola chalk is horrid. I gladly pay premium for well-made chalk (and I suspect most mathematicians prefer high quality chalk), which makes white board markers significantly cheaper.
- GFK_of_xmaspast 12y agoYou don't have to pick up a dozen pieces of chalk in order to find one that sort of works if you hold it just right.
- pmiller2 12y agoChalk boards also feel nicer to write on, are easier to erase, and the dust comes off of clothes and hands easily.