Barone, Henry Joseph2016-04-152016-04-1519461946b14682205(OCoLC)07824444(OCoLC)ocm07824444https://hdl.handle.net/2144/15760Thesis (M.A.)--Boston University, 1946. This item was digitized by the Internet Archive.en-USBased on investigation of the BU Libraries' staff, this work is free of known copyright restrictionsAnalysis of process combinations in two step problems occurring in fifth, sixth, and seventh grade arithmetic textbook seriesThesis/Dissertation