Marks, John L <br/><br/>
Teaching arithmetic for underestanding 

 - ^aNew York^bMacGraw-Hill^c1958 
 - xiv, 429p.;  23,5 cm. 
 - McGraw-Hille series in education .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Matemática<br/>Didáctica
<br/><br/><label>Universal Decimal Class. No.: </label>371.03:51