Learning appts. for words, formulas and texts - assists memorising by controlled rate of repetition

摘要

The unit represents a stencil which enables words, formulas or texts that are to be learn to be masked systematically by teeth, gaps and openings of various shapes. The learning apparatus cam be made in the form of a reading symbol made of any flexible material. The surface on both sides is kept matt so that there is no disturbance from reflected light. The colours are other than the very bright ones, as the stencil must be kept darker than the paper of the textbooks or exercise books. the teeth, gaps and openings in the stencil are highly variable, so as to be adapted to any type of printing and handwriting.