Kohl, Herbert R <br/><br/>
Writing, maths & games in the open classroom / by Herbert R. Kohl 

 - London  Methuen  1977 
 - xi,200p ill 21cm 
<br/><br/><label>ISBN: </label>0416839304 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics--Study and teaching<br/>Educational games<br/>English language--Study and teaching