00764cam a22002171a 4500 e 26000149 DLC 20260227111217.0 850424s1926 dcua f000 0 eng c e 26000149 (OCoLC)11957422 U.S. Off. of Educ. Library ABAU ABAU DLC QA135 .W63 Wilson, Guy M. (Guy Mitchell), 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 Arithmetic Study and teaching United States. Bulletin (United States. Bureau of Education) ; 1925, no. 43 20819 20819