This article suggests an activity, called the epsilon-strip activity, as an instructional method for conceptualization of the rigorous definition of the limit of a sequence via visualization. The article also describes the learning objectives of each instructional step of the activity, and then provides detailed instructional methods to guide…

A global approach to citizenship education, the Human and Environmental Learning Program (HELP), is presented in two sections--one emphasizing the student and the other the teacher. The philosophy and rationale for the program, which integrates environmental education, global studies, and social studies, are outlined. The objective is to expose…