This paper explores the development of students' knowledge of mathematical procedures. Students' tendency to develop rote knowledge of procedures has been widely commented on. An alternative, more flexible endpoint for the development of procedural knowledge is explored here, where students choose to deviate from established solving patterns on…

A case study of an elementary school child with emotional and behavioral problems illustrates a process of descriptive assessment, functional assessment, and assessment-based intervention. The descriptive information generated hypotheses about variables maintaining the problem behavior which were then tested in the classroom environment.…