Heddens, James W. <br/><br/>
Today´s Mathematics   Concepts, Methods, and Classroom Activities 
JAmes W. Heddens; William R. Speer y Daniel J. Brahier 
 - 12 ed. 
 - Estados Unidos   Wiley  2009 
 - 426 P.   graf.  27.7 cm. 
<br/><br/>Learning mathematics - Assessing mathematics - Technology in K-8 Mathematics - Addition and subtraction of whole numbers - Number theory and number systems - Rational numberss expressed as fractions: operations - Algebraic reasoning: Generalizing patterns and relationships 
<br/><br/><label>ISBN: </label>978-0470-28690-6 
<br/><br/><label>Subjects--Topical Terms: </label><br/>MATHEMATICS  
<br/><br/><label>Dewey Class. No.: </label>510  / H952t