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A board is an underground, which permits an inscription which can be removed easily again. E.g. the information applied with board chalk can be wiped off later again; the board can again be marked then. Boards are a low-priced solution for note, exercise and presentation purposes.

Development

Already from the antique one different forms from boards are well-known to holding information. Depending upon culture and local conditions one used stone boards, clay/tone boards, wax boards or Schiefertafeln, ggfls. also for several tied together as board book were used, for holding information.

Condition

Originally for the today's large boards with a dark matte color (usually dark green or black) angemalte wooden plates were used. Later board surfaces were manufactured made of plastic or glass, modern green boards to have mostly a surface made of steel enamel. They are available also with a preprinted Lineatur (similar school booklets).

The chalk, with which one writes on green boards, can be removed easily with a sponge, with a damp cloth or a special board wiping cloth, for one with felt pasted again. A disadvantage of green boards is in the fact that the chalk produces dust depending upon its quality when wiping the board. This is particularly unpleasant for Allergiker, in addition it is assumed that the chalk dust produces problems in the breath organs. By scratching at the board, with the fingernails or - in increased measure - harder articles, noises produced of most humans than are particularly unpleasantly felt.

Use

Green boards were used mainly in instruction in schools and universities, are replaced however increased by Whiteboards - so far mostly in the business everyday life and used in the further training -. In addition, within the presentation range they are gladly used due to the simple new inscription and their partial nostalgic character (e.g. as daily maps in restaurants).

Large board

Blackboards are attached mostly with rails and roles at the wall and are often provided with for the up and pushing to, which can be reciprocally described. Smaller condition boards have frequently the form of a Staffelei.

Stroke or sliding boards is boards, which can be moved perpendicularly on and off. At least of it two are one behind the other arranged mostly so that a board can be described, while another is well readable in high position. Particularly in large lecture-rooms has this advantages. Large stroke board plants are mostly electrically operated and to be able up to four boards to contain one behind the other. Also arrangements occur, with which the boards run not individually in parallellen rails, but several per rail are arranged or the boards roundabout-like in a rail construction high and in the back again down-run in front. Sometimes are next to each other arranged instead of broad two less broad stroke board plants.

The logical continuation of the principle of the stroke board are continuous boards. There there is actually no more board, but only an endless volume from green board material, which can be propelled by crank handle or electrically in such a way that it or runs here between two wall slots. Particularly for long proof or computations in the structure and natural sciences this is very suitable.

Schiefertafel

Still up to the center 20. Century regularly to the letter learning in the primary school and/or elementary school Schiefertafeln so by the pupils Schreibtafeln from slate, mentioned used, regionally is occupied the use of Schiefertafeln even still for the beginning of the 1990er years. On Schiefertafeln with styluses one wrote, which were kept in the Griffelkasten. The board was cleaned with a which again in a sponge box place found. On the Schiefertafeln partially already write lines were given. Was kept the board in a sturdier cardboard box, which was called Tafelschoner.

The "“German slate museum"” in stone oh (Thuringia) contains interesting presentations to history of the Schiefertafel.

See also

  • Flipchart
  • Whiteboard



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