Elementary arithmetic and learning aids /
Spross, Patricia McNitt, 1913-
Elementary arithmetic and learning aids / by Patricia M. Spross. - Washington : U.S. Dept. of Health, Education, and Welfare, Office of Education ; [for sale by the Superintendent of Documents, U.S. Govt. Print. Off., 1965. - vi, 134 p. : ill. ; 26 cm. - Circular (United States. Office of Education) ; no. 784 .
"OE-29063." L111.A72 no. 784 bound with Circular no. 785-no. 789 subsequent to publication.
Bibliography: p. 129-134.
hew66000030
Arithmetic--Study and teaching (Elementary)
Mathematics--Study and teaching (Elementary)
Teaching--Aids and devices.
L111 / .A72 no. 784
Elementary arithmetic and learning aids / by Patricia M. Spross. - Washington : U.S. Dept. of Health, Education, and Welfare, Office of Education ; [for sale by the Superintendent of Documents, U.S. Govt. Print. Off., 1965. - vi, 134 p. : ill. ; 26 cm. - Circular (United States. Office of Education) ; no. 784 .
"OE-29063." L111.A72 no. 784 bound with Circular no. 785-no. 789 subsequent to publication.
Bibliography: p. 129-134.
hew66000030
Arithmetic--Study and teaching (Elementary)
Mathematics--Study and teaching (Elementary)
Teaching--Aids and devices.
L111 / .A72 no. 784