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en.wikipedia.org/wiki/Blackboard

A blackboard is a reusable writing surface on which text or drawings are made with sticks of ... Green chalkboards, generally made of porcelain enamel on a steel base, first appeared in the 1960s. Magnetic blackboard used for play and ...

www.madehow.com/Volume-2/Chalkboard.html

The chalkboard is a flat, vertical writing surface on which anything can be inscribed by means of a piece of chalk. The device is generally used for educational ...

www.ebay.com/gds/How-to-Make-a-Chalkboard-Out-of-Anything-/10000000177636253/g.html

A chalkboard can be made out of any flat surface, as long as chalkboard paint is able to adhere to it. The most common material is plywood or panel board, ...

www.slate.com/articles/life/education/2014/10/a_history_of_the_blackboard_how_the_blackboard_became_an_effective_and_ubiquitous.html

Oct 15, 2014 ... The chalkboard-centered classroom offers more than pedagogical ... and in the 19th century, in rural areas particularly, it was often made from ...

education.cu-portland.edu/blog/reference-material/the-history-of-the-classroom-blackboard

Nov 8, 2012 ... In 1801, the rather obvious solution to the problem made its debut. ... The term “ chalkboard” became more common when color of the board ...

www.mybinding.com/knowledge-base/chalkboards/what-are-some-good-chalkboards.html

Jul 9, 2015 ... This article outlines the different options available for chalkboards. ... you need to choose a board that's well-made and has an affordable price.

people.ischool.illinois.edu/~chip/projects/timeline/1801wojenski.htm

Some chalkboards were as simple as wooden boards painted with a black grit; others were made of porcelain and imported from the United Kingdom; soon, ...

academia.stackexchange.com/questions/12578/what-makes-a-good-chalkboard

Sep 10, 2013 ... The good chalkboards appear to be made of porcelain enamel fused to a steel core. See this site for more details on the manufacturing process ...

www.reference.com/science/chalkboard-made-88caf5726bf83fa7

Most chalkboards are made from enamel and steel. The enamel used to make a chalkboard is made from a porcelain base, which is applied onto large steel ...