Abstract: In this experiment was studied the development of recognition of letters, familiar and unfamiliar Chinese characters, and Korean characters. Three types of developmental curves were found: 1) negative accelerated curve for familiar Chinese characters; 2) positive accelerated curve for unfamiliar Chinese characters; 3) simple accelerated curve for Korean Characters. It was suggested that there were two greater developmental changes in the process of mastering Chinese characters by primary school children: the one was found immediately after the first month of learning Chinese characters and the other was between the 1st and 2nd grade. Under different teaching conditions, the occurence of the second change might be found in different stages of the 1st grade.

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