Teaching mixed-ability groups / 
E.C. Wragg, editor. 
 - Newton Abbot :  David and Charles,  1976. 
 - 191p :  ill., plan ;  22 cm. 
 - Teaching series .
<br/><br/><label>ISBN: </label>0715368656 9780715368657 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Education, Secondary--Great Britain.<br/>Nongraded schools.