Biggs, John B. <br/><br/>
Mathematics and the conditions of learning :  a study of arithmetic in the primary school / 
by J. B. Biggs, with statistical appendix by John Hall. 
 - Slough:   National Foundation for Educational Research in England & Wales,   1967.  
 - xi, 441 p. ;  22 cm. 
<br/><br/>Includes bibliographical references and indexes. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Arithmetic--Study and teaching (Primary)
<br/><br/><label>Dewey Class. No.: </label>372.72