Flannel graph, magnetic board & plastigraph as aids to teaching and training. 

 - 2nd rev & enl. ed. 
 - London :    Tavistock House,    1967. 
 - 24 p. ;    24 cm. 
 - OVAC publication ;    no. 16 .
<br/><br/><label>Subjects--Topical Terms: </label><br/> Audio-visual education.<br/> Teaching aids.
<br/><br/><label>Dewey Class. No.: </label>Pam 371.335 OVE