Motivation of arithmetic /
Wilson, Guy M. 1876-
Motivation of arithmetic / by G.M. Wilson. - Washington : G.P.O., 1926. - iii, 60 p. : ill. ; 23 cm. - Bulletin / Department of the Interior, Bureau of Education ; 1925, no. 43 . - Bulletin (United States. Bureau of Education) ; 1925, no. 43 .
e 26000149
Arithmetic--Study and teaching--United States.
QA135 / .W63
Motivation of arithmetic / by G.M. Wilson. - Washington : G.P.O., 1926. - iii, 60 p. : ill. ; 23 cm. - Bulletin / Department of the Interior, Bureau of Education ; 1925, no. 43 . - Bulletin (United States. Bureau of Education) ; 1925, no. 43 .
e 26000149
Arithmetic--Study and teaching--United States.
QA135 / .W63