Miller, Florence May2014-02-132014-02-1319301930b24790965https://archive.org/details/abilityofthirdgr00millhttps://hdl.handle.net/2144/7530This item was digitized by the Internet Archive. Thesis (M.A.)--Boston Universityen-USBased on investigation of the BU Libraries' staff, this work is free of known copyright restrictionsAbility of third grade children to comprehend a mastery plan for addition, carry it through consistently and improve by itThesis/Dissertation