In earlier research the writer was constrained by the variables which were continuously appearing in both experimental class teaching experiences and various psychological experiments to distinguish four levels of cognitive sophistication in so far as mathematical material was concerned between the ages of 7 years and 17 years. In current research…

Theories are useful in predicting events and exploring alternatives only to the extent they accurately describe existing states of affairs. The development of a curriculum theory with predictive and exploratory power depends on accurately describing decision-making systems that result in curriculum -- however curriculum is defined. Three…

This manual is intended to help teachers meet the objectives of the 1985 Alberta, Canada, Offices Procedures 20-30 curriculum. The manual is organized in five sections. The first section contains introductory information on the Office Procedures 20-30 curriculum, including course objectives and a flowchart of the modules in the office procedures…