A study of the effect of "hidden numbers" in problems on pupil's ability to solve such problems correctly /

Carey, Mary Elizabeth2014-09-092014-09-0919551955b24813886https://hdl.handle.net/2144/8924Thesis (Ed. M.)--Boston University Includes bibliographical references (leaves 54-56).en-USBased on investigation of the BU Libraries' staff, this work is free of known copyright restrictions.Boston University. School of EducationA study of the effect of "hidden numbers" in problems on pupil's ability to solve such problems correctly /Thesis/Dissertation