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The pencil dates back to 1564 replacing the slate and chalk. Pencils were produced in bulk in 1900s
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A wooden paddle with lessons printed on it.
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Scientist and engineers used this for math until calculators were invented.
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Paper was too expensive so a slate and chalk were used. People needed a cheaper way to write.
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The first attempt at a projector. The Magic Lantern projected images printed on glass plates onto walls.
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Introduced first by Christopher L. Sholes
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Chalk was used to write on larger black boards for classroom instruction.
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3D viewing tool that helped teachers use images to illustrate points during instruction,
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Airwaves was the first form of distance learning. Film projectors were a way to show movies in schools.
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Allows teachers to display current actions of math or other problems on the board in front while doing the action.
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Adding sound to a picture in a classroom. The pen was orginally invented in 1888 but put away until 1940s. Mimeograph was the first copy machines.
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