This paper proposes a genetic development of the concept of limit of a sequence leading to a definition, through a succession of proofs rather than through a succession of sequences or a succession of epsilons. The major ideas on which it is based are historical and depend on Euclid, Archimedes, Fermat, Wallis and Newton. Proofs of equality by…

Although many in the social work profession have written about empowerment, few have offered a description of the empowerment process from the perspective of clients and workers in high-risk communities. This qualitative study presents a model of empowerment practice from the perspective of frontline workers, the challenges they faced, and the…

This article provides a case study template for creating and "selling" an enterprise-wide leadership development initiative in a highly decentralized organization. Using a story-telling approach, the authors delineate the five separate but highly interdependent stages used to achieve this. Sandwiched between a prologue and epilogue are five…

Viewing a threatening stimulus can bias visual attention toward that location. Such effects have typically been investigated only in the visual modality, despite the fact that many threatening stimuli are most dangerous when close to or in contact with the body. Recent multisensory research indicates that a neutral visual stimulus, such as a light…

Purpose: The purpose of this study was to compare the electroacoustic outputs of frequency-modulated (FM) systems coupled to hearing aids. Method: Electroacoustic performance of FM systems coupled to hearing aids was determined for 3 FM receivers: body-worn with neck loop, ear-level nonprogrammable, and ear-level programmable. Systems were…

Despite the best of intentions, qualitative researchers can be faced, in some circumstances, with having to make meaning from thin, or less than optimal, data. Using a real study as context, the authors describe the ways that they made sense of their thin data on teachers' perceptions of a large-scale evaluation instrument. They propose a…

This article responds to the reply by Cooper and Shallice to Botvinick and Plaut's previous comment . In the authors' view, the reply by Cooper and Shallice left their original responses more or less intact. The present exchange has strongly highlighted the degree to which any account of the habit system will interact with how the goal-directed…

A simulation study of a sequential computerized mastery test is carried out with items modeled with the 3 parameter logistic item response theory model. The examinees' responses are either identically distributed, not identically distributed, or not identically distributed together with estimation errors in the item characteristics. The…

This study examined the sequencing of instruction in a course in physical therapy. In the first phase, a procedural elaboration sequence was designed using the Simplifying Assumptions Method. In the second phase, a prescriptive-theoretical elaboration sequence independent of the procedural sequence was designed. A descriptive-theoretical…

A general framework is presented for the Sheridan School District K-12 social studies curriculum. The guide is arranged into three sections: rationale, goals and objectives, and scope and sequence. The rationale section emphasizes that students should develop awareness of individual rights and responsibilities, cope with the problems of our…

Reviewing results of experiments in which sequence of motion picture shots was varied, the author concludes that the meaning of individual shots varies with changes in order and context. (Editor)

Program Evaluation and Review Technique (PERT) is a statistical technique, developed by the U.S. Navy, for analyzing and quantifying uncertainties in sequential or parallel activities essential for completing a project within certain parameters. It focuses management attention on points that require remedial action or tradeoff in time (or other…

A school planning scheme involving 46 principle activities which occur over a 38-month period is presented. This scheme was developed for individuals responsible for the planning of vocational and technical schools, i.e., supervisors, state staff, university school plant planners, architects, and local school administrators. The activities…

A pre-testing orientation was incorporated into the Work Incentives Program, a pre-vocational program for disadvantaged youth. Test-taking skills were taught in seven and one half hours of instruction and a variety of methods were used to provide a sequential experience with distributed learning, positive reinforcement, and immediate feedback of…

This handbook has been designed to serve as a resource book to familiarize teachers with the basics of nongrading. The opening chapter provides the general rationale, followed by a concise explanation of the philosophy and theory of nongradedness. Other chapters deal with the need for nongradedness and its implementation, the role of the teacher,…