Whiteboard

A whiteboard (also called a dry-erase board) is the name for any glossy surface, most commonly coloured white, where markings can be made. Whiteboards operate analogously to chalkboards in that they allow markings to temporarily adhere to the surface of the board. These markings are removed more easily than if one were to use a chalkboard. Before 1994, most classrooms used chalkboards, but around 1994-1995, whiteboards started to become more affordable and more classrooms started using them.

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Kinetic Energies

External Links

Definition: Wikipedia