Schwabe, Lillie2022-07-262022-07-261968-06https://hdl.handle.net/11299/229841A Plan B Paper Submitted to the Faculty of the Graduate School of the University of Minnesota, A Requirement for the Degree Master of Arts (Plan B), by Lillie Schwage, June 1968.en-USUniversity of Minnesota DuluthPlan Bs (project-based master's degrees)Master of ArtsMaster of Arts in Curriculum and InstructionDivision of Education and PsychologyHistorical Methods for Performing Computation in the Four Operations with Whole NumbersScholarly Text or Essay