Thompson, Patrick W. <br/><br/>
Notations, conventions, and constraints : contributions to effective uses of concrete materials in elementary mathematics 

 - 123-147 
 - 23, No. 2, 1992 
<br/><br/>Junio 1992 
 = JOURNAL FOR RESEARCH IN MATHEMATICS EDUCATION 
<br/><br/><label>Encabezamiento--Término de Indización: </label>DESARROLLO COGNOSCITIVO EAC ENSE\197ANZA MATEMATICA FRACCIONES DECIMALES MATERIALES MANIPULABLES NUMEROS ENTEROS