The Effect of Functional Flow Diagrams on Apprentice Aircraft Mechanics' Technical System Understanding

Cognitive theory suggests that a key to expert performance lies in the internal organization of the expert's knowledge. The authors contend that the type of technical illustration used during instruction influences knowledge organization and greatly impacts students' understanding of the content. This paper describes an experimental study that tested the impact of one type of conceptual illustration on students' understanding of the structure, function, and behavior of complex technical systems. The results show that supplementing traditional technical instruction with functional flow diagrams can improve overall system understanding. The functional flow diagrams were also found to be an effective instructional aid for enhancing students' conceptual understanding of the causal behavior of systems. In addition, the use of the functional flow diagram was found to significantly improve the subjects' ability to construct conceptual models that were similar to those of an expert. The implications of using conceptual diagrams for technical instruction are discussed and recommendations for future research in this area are provided.     

Child development knowledge: Is it enough?

It would seem a foregone conclusion that early childhood program directors need a knowledge base in child development if they are to establish credibility in their role as directors (Kuykendall, 1990). The general assumption, then, is that directors' client base is young children. However, early childhood program directors in their daily experiences deal with opposite ends of the development continuum from children to adults.Sharon L. Wooden is Professor, Department of Curriculum and Instruction, New Mexico State University, Las Cruces, NM. Nancy E. Baptiste is Coordinator, Child Development Associate Program, New Mexico State University, Las Cruces.     

Sustaining High-Quality Teaching and Evidence-Based Curricula: Follow-Up Assessment of Teachers in the REDI Project

Research Findings: Recent research has validated the power of evidence-based preschool interventions to improve teaching quality and promote child school readiness when implemented in the context of research trials. However, very rarely are follow-up assessments conducted with teachers in order to evaluate the maintenance of improved teaching quality or sustained use of evidence-based curriculum components after the intervention trial. In the current study, we collected follow-up assessments of teachers 1 year after their involvement in the REDI (REsearch-based, Developmentally Informed) research trial to evaluate the extent to which intervention teachers continued to implement the REDI curriculum components with high quality and to explore possible preintervention predictors of sustained implementation. In addition, we conducted classroom observations to determine whether general improvements in the teaching quality of intervention teachers (relative to control group teachers) were sustained. Results indicated sustained high-quality implementation of some curriculum components (the Promoting Alternative THinking Strategies curriculum) but decreased implementation of other components (the language/literacy components). Sustained intervention effects were evident on most aspects of general teaching quality targeted by the intervention. Practice or Policy: Implications for practice and policy are discussed.     

Letters to the editor

This study examines editorial photography in nine major erotica magazines to determine how pictures vary as a function of the social class, gender and sexual preference of the intended readership. The analysis reveals that upwardly‐mobile, heterosexual men are treated to idealized images, whereas working‐class, heterosexual men are presented with more mundane yet highly‐sexualized images. Heterosexual women are provided with photographs of nude males in a low‐sexual context. Magazines for homosexual men present images, except for gender, very similar to those created for upwardly‐mobile, heterosexual men. These patterns are discussed from a functionalist perspective to show how erotica magazines contribute to social‐order maintenance.     

OLDER ADULTS' PARTICIPATION IN UNIVERSITY CLASSES: COGNITIVE,MORALE, AND FAMILY CORRELATES

The number of older adults taking advantage of courses offered by institutions of higher learning is increasing. Despite this trend in university and college enrollment, educators know little about the reasons why adults aged 55 years and over are making the decision to return to school. This paper describes the results of an exploratory study about: (1) educational motivations of older students; (2) effect of involvement in university classes on older adults' attitude toward aging; and (3) impact of older individuals' participation in university classes on marital relations.

Interviews were_ conducted with twenty‐one married couples, aged 55 years and older (X = 68.54), with one spouse attending university classes. In order to compute life satisfaction analyses, a control sample was secured. This group consisted of 33 married couples, 55 years and over (X = 70.93), with neither spouse participating in continuing education.

Results indicated that older students viewed intrinsic learning goals to be significantly more important than extrinsic incentives (p<.01). Student couples reported significantly more positive attitudes toward growing older than did nonstudent couples (p<.05). Although participation in university classes had only a minimal impact on members' marital interaction, student couples express satisfaction with this effect.

Recommendations suggested the construction of assessment measures of older adults' self‐initiated versus externally reinforced learning goals. It is advised that pre‐ and posttest interview schedules be used when determining the impact on family solidarity of older adults' pursual of further learning. Future research is suggested which explores whether participation in continuing education provides skills or information for older persons to adjust to their changing environments which in turn would have an influence on level of morale.     

Constraints Affecting ICT Utilization by Agricultural Extension Officers in the Niger Delta,Nigeria

Abstract

The study focused on constraints affecting the utilization of Information and Communication Technologies (ICT) for agricultural extension activities by Agricultural Extension Officers in Nigeria's Niger Delta Region. Data were derived from 160 extension officers affiliated to both public and private extension organizations in four states of the Niger Delta. Findings revealed important specific constraints to include: poor ICT infrastructure development, high cost of broadcast equipment, high charges for radio/television presentations, high cost of access/interconnectivity and electricity power problems. The use of Factor Analysis aided to crystallize identified constraints into three factors of ‘poor enabling environment’, ‘lack of access’ and ‘dissemination of unrelated information’. Against the background of several national government initiatives to develop the infrastructure base of the country, recommendations are proffered to ameliorate ICT use constraints.     

MAGIS: mobile augmented-reality games for instructional support

ABSTRACT

We present Mobile Augmented-Reality Games for Instructional Support (MAGIS), a framework for the development of mobile augmented-reality (AR) games for education. The framework supports off-the-shelf, state-of-the-art technologies that enable AR tracking and rendering on consumer-level mobile devices, and integrates these technologies with content-generation tools that simplify the development of educational AR games, especially those that extensively use narrative-based game design and player-location tracking such as location-based historical or museum adventure games. We use Igpaw: Intramuros, a proof-of-concept game developed using MAGIS, to help describe the current state of the framework and to show its efficacy for implementing outdoor location-based educational games, and we briefly outline future development plans to improve MAGIS’ AR support (especially those involving indoor scenarios) as well as to improve the instructional design and authoring phases of AR applications written using this framework.     

Teaching about violence prevention: A bridge between public health and criminal justice educators

Public health perspectives on violence-related injuries have become increasingly important over the past two decades, yet they are rarely mentioned in criminal justice educational texts or articles. Here we provide a brief overview of the public health approach to the prevention of violence and related injuries and compare it to an approach to crime prevention commonly associated with the criminal justice approach: deterrence. The prevention of sexual assault on college and university campuses is used as an illustration of the two approaches. Finally, given the similarities between the manner in which these two multi-disciplinary fields approach violence prevention, we explore how and why criminal justice educators might want to teach a bridge between public health and criminal justice.