Ekman, Bengt. <br/><br/>
Teaching geometry in grade four :   Three experiment studies carrie d out in a practical educational situation [Stockholm] /  
Bengtn Ekma n. 
 - Stockholm :   Svenska Bokforlaget ,   1968. 
 - 223 p. :    tables, figures ;    23 cm. 
 - Studia scientiae paedogicae Upsaliensia ;   no. 10. .
<br/><br/>  Scandinavian university books   Iaug.-Diss.-Uppsala   Extra t.p. with thesis statement, inserted 
<br/><br/>Includes bibliography : p. 220 - 223 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geometry --Study and teaching (Primary).------<br/>Geometry --Programmed instruction.------
<br/><br/><label>Dewey Class. No.: </label>372.73