Wilson, Elliot Tilden2017-04-202017-04-2019481948b146793347823224https://hdl.handle.net/2144/21338Thesis (Ed.M.)--Boston University, 1948. This item was digitized by the Internet Archive.en-USBased on investigation of the BU Libraries' staff, this work is free of known copyright restrictionsAn analysis of four elementary science series to establish the correspondence of experiments found in these books with those principles to be taught in elementary scienceThesis/Dissertation