Using computer generated images and text for the whole of an undergraduate course

Computer generated images are being used to provide text and diagrams for lectures. These images are then openly available to first year undergraduates in the Department of Mechanical Engineering and Manufacturing Systems at the University of Northumbria. A large lecture theatre is fitted with a computer-driven overhead projector and is used to display the files to over one hundred students. The image files and a text file commentary are provided, via automated routines on department computers, for students to copy onto their own discs.
The images are produced in a compressed and self displaying form, allowing all the material for the course to be contained on a single 1.4Mb floppy disc. All the material associated with these lectures is held on magnetic media.
This paper describes the method used, comments on some of the practical problems of using the method, and gives some of the student reaction to it.     

COLLEGE EDUCATORS AND THE RETIREMENT DECISION

Our findings from a survey study of retired educators (N – 373) confirm that reasons for the retirement decision have changed over time. Long‐term retirees were found to stress the influence of statutory imperatives in leaving the workplace, whereas the recently retired, and women in particular, were more likely to cite factors related to personal interest and life‐style. Results suggest that university personnel programs engaged in retirement life planning need to be responsive to retirees' changing needs.     

Hemoglobin, growth, and attention of infants in southern Ethiopia

Male and female infants from rural Ethiopia were tested to investigate relations among hemoglobin (Hb), anthropometry, and attention. A longitudinal design was used to examine differences in attention performance from 6 (M = 24.9 weeks, n = 89) to 9 months of age (M = 40.6 weeks, n = 85), differences hypothesized to be related to changes in iron status and growth delays. Stunting (length‐for‐age z scores < ?2.0) and attention performance, t(30) = ?2.42, p = .022, worsened over time. Growth and Hb predicted attention at 9 months, R² = .15, p < .05, but not at 6. The study contributes to the knowledge base concerning the relations among Hb, early growth, and attention.     

Professional Development for School Library Media Professionals: Elements for Success

The American Association for School Librarians suggests an important mission for school librarians is to ensure personal growth through ongoing exposure to conferences, journal articles, webinars, presentations, and membership in professional organizations. As professional educators, School Librarians should exemplify the vision for being life-long learners. Methods and means to grow in the profession should be evaluated and examined for elements that lead to success in growth and maturity as professionals in school library media. This article investigates the attributes of successful professional development experiences which include learning environment, characteristics of learners, methodologies, and instructional design of staff development workshops.     

The virtual anatomy laboratory: usability testing to improve an online learning resource for anatomy education

An increasing number of instructors are seeking to provide students with online anatomy resources. Many researchers have attempted to identify associations between resource use and student learning but few studies discuss the importance of usability testing in resource design and modification. Usability testing provides information about ease of use and resource flexibility and indicates navigational issues that contribute to extraneous cognitive load for the user. An example of usability testing for modification of an online anatomy resource called the "Virtual Lab" is presented. Usability testing was used to determine whether increased content would impair navigation through the interface. Subjects with varying levels of experience with anatomy content were recruited to assess efficiency and effectiveness (defined by usability standards) of the original resource and of the redesigned resource. Comparisons between usability evaluation of the original "Virtual Lab" (OVL) and of the redesigned "Virtual Lab" (RVL) revealed that subjects were better able to successfully complete tasks using the RVL than they were with the OVL. Results also demonstrated that subjects did not take significantly more time to successfully complete tasks with the RVL. Additionally, usability testing revealed that subjects were able to successfully complete tasks using the RVL regardless of whether they possessed prior experience with anatomy content or not. Results of this study suggest that the modified resource is more effective for users. The example presented here underscores the need for usability testing prior to resource implementation and whenever significant changes are made to a resource interface.     

The context of their lives

Abstract

This paper explores the Ecology of Human Development Model (Bronfenbrenner, 1979) as applied to the lives of students enrolled in the Early Childhood Education program at James Madison University (Virginia). This model provided insights into who our students are, their experiences, beliefs and values and how they define themselves; secondly, the process of reflection provided an opportunity for students to examine their lives as part of a larger social context; and thirdly, by valuing the process, it is hoped that students would recognize the importance of coming to know the children they teach. It is imperative that students are well prepared for teaching an increasingly diverse population (NCATE Standard I.E.2). Our belief is that in order for prospective teachers to appreciate diversity in classrooms, they need first to examine the context of their own lives. © 2001 Elsevier Science Inc. All rights reserved.     

STUDENTS' UNDERSTANDING OF ALGEBRAIC NOTATION: 11–15

Research studies have found that the majority of students up to age 15 seem unable to interpret algebraic letters as generalised numbers or even as specific unknowns. Instead, they ignore the letters, replace them with numerical values, or regard them as shorthand names. The principal explanation given in the literature has been a general link to levels of cognitive development. In this paper we present evidence for specific origins of misinterpretation that have been overlooked in the literature, and which may or may not be associated with cognitive level. These origins are: intuitive assumptions and pragmatic reasoning about a new notation, analogies with familiar symbol systems, interference from new learning in mathematics, and the effects of misleading teaching materials. Recognition of these origins of misunderstanding is necessary for improving the teaching of algebra.