Experiment in drill in the addition and multiplication processes in grades five, six, seven, and eight

Gray, Arthur Newman2016-10-122016-10-1219421942b14670215(OCoLC)07816644(OCoLC)ocm07816644https://hdl.handle.net/2144/18150Thesis (M.A.)--Boston University, 1942. This item was digitized by the Internet Archive.en-USBased on investigation of the BU Libraries' staff, this work is free of known copyright restrictionsExperiment in drill in the addition and multiplication processes in grades five, six, seven, and eightThesis/Dissertation