Matheson, Myrna I2022-07-262022-07-261966-08https://hdl.handle.net/11299/229793A Paper Presented to the Faculty of the Graduate School, University of Minnesota, A Requirement for the Degree Master of Arts (Plan B), by Myrna I. Matheson, August 1966.en-USUniversity of Minnesota DuluthPlan Bs (project-based master's degrees)Master of ArtsMaster of Arts in Curriculum and InstructionDivision of Education and PsychologyA Survey of the Readability Level of Business-Sponsored Supplementary Materials for Intermediate Grade Science and Social StudiesScholarly Text or Essay