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A comment on Mathematicians Are Hoarding a Type of Japanese Chalk.

Re:Mathematicians Are Hoarding a Type of Japanese Chalk by jipumarino on Monday June 15, 2015 @11:52PM (#9723713)
I taught with blackboard and chalk at a university and then at a high school for 9 years. I'm allergic and hated the chalk with a burning passion.
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