Multimodality,crossmodality, and dyslexia

It is argued that what we call intelligent behavior is based to a great extent on our ability to analyze multimodal and crossmodal information. Acquisition and utilization of those functions seem to appear and develop greatly during the 2–4 year period in humans. Among the functions are those frequently affected in dyslexic persons. It might be possible to diagnose potential dyslexics by testing for the adequacy of those functions at that early period. In addition, limitations on the number of concepts that can be handled simultaneously may be involved in information processing in such a way as to affect both multimodality and crossmodality; this limitation seems not to be generally taken in to account by educators, especially those working with dyslexic persons.     

Using a blended learning approach to support women returning to STEM

ABSTRACT

This paper examines a blended learning model designed to support women returning to STEM after a career break and its delivery in a unique partnership between an online distance education provider and a community-based equality organisation. Through this partnership additional activities such as networking events, returnships, career clinics and webinars were used in conjunction with a structured online Badged Open Course (BOC), which enabled a successful return to employment for many of the participants. This article outlines the results and implications of this integrated model and argues that blended learning approaches need to be flexible and adaptable to be able to incorporate the needs of learners at different life-course stages, taking into consideration gender and other diversity characteristics.     

Pedagogical Reflections by Secondary Science Teachers at Different NOS Implementation Levels

This study investigated what 13 secondary science teachers at various nature of science (NOS) instruction implementation levels talked about when they reflected on their teaching. We then determined if differences exist in the quality of those reflections between high, medium, and low NOS implementers. This study sought to answer the following questions: (1) What do teachers talk about when asked general questions about their pedagogy and NOS pedagogy and (2) what qualitative differences, if any, exist within variables across teachers of varying NOS implementation levels? Evidence derived from these teachers’ reflections indicated that self-efficacy and perceptions of general importance for NOS instruction were poor indicators of NOS implementation. However, several factors were associated with the extent that these teachers implemented NOS instruction, including the utility value they hold for NOS teaching, considerations of how people learn, understanding of NOS pedagogy, and their ability to accurately and deeply self-reflect about teaching. Notably, those teachers who effectively implemented the NOS at higher levels value NOS instruction for reasons that transcend immediate instructional objectives. That is, they value teaching NOS for achieving compelling ends realized long after formal schooling (e.g., lifelong socioscientific decision-making for civic reasons), and they deeply reflect about how to teach NOS by drawing from research about how people learn. Low NOS implementers’ simplistic notions and reflections about teaching and learning appeared to be impeding factors to accurate and consistent NOS implementation. This study has implications for science teacher education efforts that promote NOS instruction.     

Generalization of visual matching and delayed matching by a California sea lion (Zalophus californianus)

Only a limited number of species have been found capable of generalized matching-to-sample (MTS) after exposure to relatively few training exemplars. We trained a juvenile, experimentally naive California sea lion (Zalophus californianus) in MTS, using a pair of three-dimensional objects as samples. Successful matching to a criterion of 90% correct or better over 2 successive sessions was attained in 12 sessions (269 trials and 70 errors). Two subsequent “partial” transfer tests, in which each of the two training objects was paired with a novel test object, and four additional transfer tests, all with novel objects, were presented following training. An 80% performance criterion over 2 successive sessions was reached, or closely approximated, in from 2 to 4 transfer sessions for all transfer tests; errors to criterion tended to be reduced across the successive novel transfer tests and were as few as five during the final two tests; and performance on the first 48 trials of the last two novel transfers was not significantly different from a near-ceiling level baseline performance measure. Neophobic responses of the sea lion to new objects precluded an unbiased evaluation of immediate (Trial 1) transfer. The sea lion’s short-term memory for sample objects was also measured. Matching performance was maintained at a level of 78% correct responses or better for delays through to 45 sec after removal of the sample object. At a 58-sec delay, the longest tested, performance declined to 69% correct responses. These retention levels are only somewhat below levels reported for dolphins and nonhuman primates tested on visual delayed MTS, but they are above levels typically reported for pigeon subjects.     

Research productivity and perceived teaching effectiveness: A survey of economics faculty

The relationship between research productivity and teaching effectiveness has long been a controversial topic among university professors. This study utilizes a nationwide survey of economics faculty to examine the relationship between research productivity and classroom performance, using self-reported measures of research output and teaching evaluation scores, and to solicit the participants' opinions on this issue. Findings indicate a very weak relationship between research output and teaching effectiveness. However, individual and institutional characteristics seem to explain some differences in research output and teaching evaluation scores. Further, faculty opinions on the research-teaching relationship seem to be influenced by institutional and individual characteristics.     

Forced to choose: some determinants of racial identification in multiracial adolescents

This paper categorizes multiracial youth (N=1,496) ages 14 to 19 and compares them with each other and with monoracial youth on identity development measures. The multiracial categories used here are derived from youths' reports of their own and their parents' race(s). Comparisons are made within groups of multiracial respondents who make different choices among single-race categories. Results show differences between subgroups in strength and importance of ethnic identity, self-esteem, and perceptions of ethnic discrimination. Multinomial logistic regression shows further that physiognomy, ethnic identity, and race of coresident parent(s) are significantly associated with reported race. Also related to racial identification among part-Hispanic youth are the racial distribution and socioeconomic status of their neighborhoods and the racial distributions of their schools.     

Association Between Experienced Teachers’ NOS Implementation and Reform-Based Practices

The assertion that general reform-based science teaching practices (GRBSTPs) can facilitate nature of science (NOS) instruction has been mentioned in the literature, but rigorous and transparent empirical substantiation for this claim has not been made. This investigation empirically demonstrates an association between thirteen experienced teachers’ NOS implementation practices and their GRBSTPs. While effectively implementing GRBSTPs does not ensure the NOS will be taught, the findings show that these practices are associated with high levels of NOS instruction. In this study, teachers who implemented higher levels of reform-based practices were also observed to enact more instances of planned and spontaneous effective NOS instruction. Furthermore, these teachers were more likely to recognize and capitalize on NOS teaching opportunities when they unexpectedly arose in the context of their GRBSTPs. Just as NOS understanding must be assessed when determining factors associated with teachers’ NOS implementation, teachers’ GRBSTPs should also be empirically and transparently established to ensure they do not mask or confound other factors associated with NOS implementation.     

Engineering Instructors Look at Their Report Cards

Abstract

This article investigates the effect of the raters' perception of a given topic on students' writing scores. Three raters, who were teachers in TEFL with backgrounds in teaching essay and letter writing in English, scored the compositions. The means of the three sets of scores by three raters were compared using the two-way analysis of variance (ANOVA). Concerning the hypothesis of the study that states “raters' perception has no effect on writers' composition scores,” the result of ANOVA was nonsignificant, meaning that there are other factors such as students' attitude and cognitive ability that may affect raters' judgments on student writing performance.     

Computer History

FROM ENIAC TO UNIVAC: AN APPRAISAL OF THE ECKERT-MAUCHLY COMPUTERS by Nancy Stern (1981, 286 pp.—$25.00).

EARLY BRITISH COMPUTERS by Simon Lavington (1980, 139 pp.—$9.00, paper).

PROJECT WHIRLWIND: THE HISTORY OF A PIONEER COMPUTER by Kent C. Redmond and Thomas M. Smith (1980, 280 pp.—$25.00).

HERMAN HOLLERITH: FORGOTTEN GIANT OF INFORMATION PROCESSING by Geoffrey D. Austrian (originally published by Columbia University Press in New York: 1982. 418 pp.-819.95).

THE COMPUTER FROM PASCAL TO VON NEUMANN by Herman H. Goldstine (originally published by Princeton University Press in 1972, and also available since 1980 in paperback, 378 pp.—$25.00).

RECKONERS: THE PREHISTORY OF THE DIGITAL COMPUTER, FROM RELAYS TO THE STORED PROGRAM CONCEPT, 1935-1945, by Paul E. Ceruzzi (Westport, Connecticut: Greenwood Press, 1963— $29.95).