Hans Freudenthal <br/><br/>
Mathematics as an educational task. 

 - Dordrecht-Holland   Reidel.   1973 
 - 680p  23cm 
<br/><br/> Putting them in the front of the book is a feeble reflection of what, in the style of mathe- matics treatises and textbooks, I usually call thf didactical inversion: to be fit to print, the way to the result should be the inverse of the order in which it was found;  Read less 
<br/><br/><label>ISBN: </label>9027702357 
<br/><br/><label>Subjects--Uniform Titles: </label><br/>Mathematics --  -- <br/>Study and teaching. Mathématiques<br/>Étude et enseignement. Wiskunde.
<br/><br/><label>Dewey Class. No.: </label>510.7 F889m