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The Chalkboard
The chalkboard has stayed around the longest. It is the most durable teaching tool. -
The Pencil
Paper and pencils started to become more and more avaliable -
Radio
New York City's school board first started using radios do broadcast lessons -
Overhead Projector
Started in the War and then made its way into school to project notes/information on a wall to students -
Educational Channels
By now there where more than 50 educational channels -
Scantron
This was created to easily mark multiple choice test -
Plato Computer
in the US in 1984 it averaged about one computer for every 98 students -
Graphing Calculator
Schools starting using these for math courses -
Smart Boards
Changed the noraml white board with a board that connects with your computer and can be drawn on and things projected on it -
iPad
The ipad is now taking over classes, even kindergarden classes