Proceedings    mathematics today a guide  for teachers ed by Howard F Fehr 

 -  1964 
 - New thinking in school science .
<br/><br/><label>Standard No.: </label>86,803 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>EDUCATION
<br/><br/><label>Dewey Class. No.: </label>T2:3:Bp1:N63, K4