The papers contained in this document were originally presented at the May 1978 conference on Modeling Mathematical Cognitive Development sponsored by the Models of Learning Mathematics Working Group of the Georgia Center for the Study of Learning and Teaching Mathematics. Most have been revised to reflect comments and suggestions made at the…

A description is provided of a computer-based simulation of an instructional system which adapts the learning environment to the individual's unique attributes for processing information and for being motivated. The main purposes of the simulation are: 1) to introduce, as attributes for individualizing instruction, information processing variables…