Suydam, Marilyn N. <br/><br/>
Research on mathematics education,K-12 reported in 1973 
Marilyn N.Sudam and Weaver, J.F. 
 - Ohio   ERIC Information Analysis Center for Science ,Mathematics and Environmental Education  1974 
 - 79p. ; 24cm.- 
 - Mathematics education reports .
<br/><br/><label>Dewey Class. No.: </label> / 510.72 SUY