Multiple representations of mathematical reasoning / 
David McArthur ... [et al.] ; prepared for the National Science Foundation. 
 - California :  Rand Corporation,  1988 
 - ix, 17 p. :  ill. ;  28 cm. 
 - A Rand note ;  N-2758-NSF/RC .
 - Rand note ;  N-2758-NSF/RC .
<br/><br/>Includes bibliographical references (p.17) 
<br/><br/><label>ISBN: </label> Hadiah 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Algebra--Study and teaching<br/>Algebra--Programmed instruction