The effect of sixth-grade pupils' skill in compound subtraction when they experience a new procedure for performing this skill.

Cosgrove, Gail Edmund2015-11-022015-11-0219571957b14636517https://hdl.handle.net/2144/13412Thesis (Ed.D.)--Boston University.en-USBased on investigation of the BU Libraries' staff, this work is free of known copyright restrictions.SubtractionArithmeticThe effect of sixth-grade pupils' skill in compound subtraction when they experience a new procedure for performing this skill.Thesis/Dissertation