-
471
-
472
-
473
-
474
A proposed mathematics laboratory for elementary schools in the Philippines
Publicerad 1973Lärdomsprov -
475
Teaching probability and other selected statistical concepts to the intermediate grades
Publicerad 1973Lärdomsprov -
476
Attitudes of elementary school pupils and their parents toward mathematics and other areas of instruction
Publicerad 1973Lärdomsprov -
477
-
478
-
479
-
480


