Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

What kind of board chalk is this?

  1. Jun 8, 2012 #1
  2. jcsd
  3. Jun 8, 2012 #2

    Pythagorean

    User Avatar
    Gold Member

  4. Jun 8, 2012 #3
    Thanks for the suggestion. I have to erase a board probably 10 times a lecture, so wiping it down with water will not work well for me.
     
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook