Raker, Mary E.2016-10-312016-10-3119471947b14692594(OCoLC)07832180(OCoLC)ocm07832180https://hdl.handle.net/2144/18846Thesis (Ed.M.)--Boston University, 1947. This item was digitized by the Internet Archive.en-USBased on investigation of the BU Libraries' staff, this work is free of known copyright restrictionsThe improvement of recall using third grade social studies materialsThesis/Dissertation