Saturday, October 5, 2013

History of Technology in Mathematics

Slateboard: imprinting math and erasing mistakes since the 19th century.

1 comment:

  1. These boards are still used in math classes today, but now they are made as dry erase boards. I like the use of these boards because teachers are able to see everyones answer with a quick glance to asses who understands the problem and who seems to be making mistakes.

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