Sometimes charts are needed by the teacher to supplement his actual teaching.
There are certain charts which represent a statistical diagram for a series of diagram which may be difficult to understand.
Charts require fewer efforts for presentation than slides.
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Following points be kept in view while using charts as teaching aids:
(i) An effort be made to use charts prepared by students under the guidance of the teacher, however some charts may be purchased.
(ii) Only such charts be purchased which have bold lines and in which such colours are used as could be seen and distinguished even by the back-benchers.
(iii) Charts should give only the essential details.
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(iv) Charts should be properly and clearly labeled in block letters.