Butler, Frank A. <br/><br/>The improvement of teaching in secondary schools / Butler, Frank A.  -- 3rd. ed.  -- Chicago :  University of Chicago Press  1954 <br/>xii, 433 p.  24 cm.  <br/><br/> Includes index. <br/><br/><label>Subjects--Topical Terms: </label><br/>Secondary education -- Teaching<br/><br/><label>Dewey Class. No.: </label>GC 373 H971 1962