TY  - BOOK
AU  - Ekman,Bengt
TI  - Teaching geometry in grade four : : Three experiment studies carrie d out in a practical educational situation [Stockholm] / 
U1  - 372.73 
PY  - 1968///
CY  - Stockholm : 
PB  - Svenska Bokforlaget , 
KW  - Geometry
KW  - Study and teaching (Primary)
KW  - Programmed instruction
N1  -  Scandinavian university books;  Iaug.-Diss.-Uppsala;  Extra t.p. with thesis statement, inserted;  Includes bibliography : p. 220 - 223
ER  -