Experimental Pedagogical Research on the Development of Language Training Programs for Mentally Retarded Children.

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In this study we administered the experimental language training to 14 mentally retarded (M.R.)children with severe retardation in language development under the following experimental language training programs.The main findings are as follows:1) Words acquisition promoting programs. Two severe M.R. non verbal children underwent training under two kinds of program, aiming at acquisition of symbolic function and words through formation of joint action and objective action with object. As results they could acquire passive words, but could hardly acquire symbolic function and active ones through the training.2) Active vocabulary and active communication program. Four severe M.R. children with autism and one with Down's syndrome underwent training under the program, aiming at formation of active verbal communication in the concrete situations. As the results, all of them showed progress in communication behaviors and especially one of them acquired active symbolic verbal act through the … More training.3) Teaching Program of interrogative sentences with interrogative words: Five M.R. children with Down's syndrome having acquired fundamental ability of syntactic sentence production, underwent the training under the program aiming at teaching interrogative sentences with interrogative words (who,what,whom,with what,where,how). Here training pictures with the linear schema of interrogative sentences and symbolic figures representing interrogative words were used. As the results, it was found that this program was effective in teaching interrogative sentences to M.R.children, although they had to repeat the training many times.4) Teaching program of noun predicate sentences and of connective usage of two adjectives. Two M.R.children with Down's syndrome having acquired fundamental syntactic ability participated in the training under the program, which intend to form the ability to produce such a sentence as "Is is a long broad pencil" through formation of classification of objects and symbolization of features of objects by symbolic figures. As the results this program was found to be very effective in teaching these sentences to M.R.children.The research report, containing 7 papers, was published at the end of March 1987. Less