Text ( visual ) : unmediated The common sense of teaching reading and writing / Caleb Gattegno. -- New York : Educational Solutions , 1985. -- x, 295 p. ; 22 cm. -- Includes index. -- ISBN 0878251812 ; (BA18643977) ; https://ci.nii.ac.jp/ncid/BA18643977 Author Heading(s): Gattegno, Caleb

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