Student Reasoning About the Lever Principle Through Multimodal Representations: a Socio-Semiotic Approach     

Xu  Lihua  Ferguson  Joseph  Tytler  Russell 《International Journal of Science and Mathematics Education》2021,19(6):1167-1186

International Journal of Science and Mathematics Education - There is increasing recognition of the multimodal representational nature of science discovery practices and the roles of multiple and...  相似文献   

Choosing and leaving science in highly selective institutions     

A. Christopher Strenta  Rogers Elliott  Russell Adair  Michael Matier  Jannah Scott 《Research in higher education》1994,35(5):513-547

This study sought to discover some of the causes of initial interset in and atrition from the natural sciences and engineering among the students (N=5320) who entered four highly selective institutions in 1988, with particular attention to possible special causes for the disproportionate attrition of women from science. Though a smaller proportion of women (35 percent) than men (49 percent) were initially interested in science, gender added little to the prediction of such initial choice when preadmission measures of developed abilities were taken into account in regression analysis. Of the group of 2,276 students initially interested in science, 40 percent did not finally concentrate in science, and smaller proportions of women (48 percent) than of men (66 percent) persisted. The most significant cognitive, factor predicting these losses was low grades earned in science courses taken during the first two years of study. With grades held equal, gender was not a significant predictor of persistence in engineering and biology; gender added strongly to grades, however, as a factor associated with unusually large losses of women from a category that included the physical sciences and mathematics. Responses to a questionnaire administered in the fall of 1991 showed that science majors regarded their instruction as too competitive, with too few opportunities to ask questions, taught by professors who were relatively unresponsive, not dedicated, and not motivating. Students who defected from science did so largely because of the attraction of other fields, but many shared the criticism of overcompetitiveness and inferior instruction, along with the view that the work was too difficult. Several items were about elements of classroom instruction and atmosphere thought to be especially difficult for women (i.e., the chilly climate), but except for perceived competitiveness, women did not rate their classroom experiences as being more unpleasant than did men. This research was supported by grants from the Alfred P. Sloan Foundation and the National Science Foundation.  相似文献   

Heterogeneity in the Effects of College Course Placement     

Daugherty  Lindsay  Gerber  Russell  Martorell  Francisco  Miller  Trey  Weisburst  Emily 《Research in higher education》2021,62(7):1086-1111

Traditionally colleges have relied on standalone non-credit-bearing developmental education (DE) to support students academically and ensure readiness for college-level courses. As emerging evidence has raised concerns about the effectiveness of DE courses, colleges and states have been experimenting with approaches that place students into credit-bearing coursework more quickly. To better understand which types of students might be most likely to benefit from being placed into college-level math coursework, this study examines heterogeneity in the causal effects of placement into college-level courses using a regression discontinuity design and administrative data from the state of Texas. We focus on student characteristics that are related to academic preparation or might signal a student’s likelihood of success or need for additional support and might therefore be factors considered for placement into college-level courses under “holistic advising” or “multiple measures” initiatives. We find heterogeneity in outcomes for many of the measures we examined. Students who declared an academic major designation, had bachelor’s degree aspirations, tested below college readiness on multiple subjects, were designated as Limited English Proficiency (LEP), and/or were economically disadvantaged status were more likely to benefit from placement into college-level math. Part-time enrollment or being over the age of 21 were associated with reduced benefits from placement into college-level math. We do not find any heterogeneity in outcomes for our high school achievement measure, three or more years of math taken in high school.

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Weak Ties in Networked Communities     

Andrea L. Kavanaugh  Debbie Denise Reese  John M. Carroll  Mary Beth Rosson 《The Information Society》2005,21(2):119-131

Communities with high levels of social capital are likely to have a higher quality of life than communities with low social capital. This is due to the greater ability of such communities to organize and mobilize effectively for collective action because they have high levels of social trust, dense social networks, and well-established norms of mutuality (the major features of social capital). Communities with “bridging” social capital (weak ties across groups) as well as “bonding” social capital (strong ties within groups) are the most effective in organizing for collective action. People who belong to multiple groups act as bridging ties. When people with bridging ties use communication media, such as the Internet, they enhance their capability to educate community members and to organize, as needed, for collective action. This article summarizes evidence from stratified household survey data in Blacksburg, VA, showing that people with weak (bridging) ties across groups have higher levels of community involvement, civic interest, and collective efficacy than people without bridging ties among groups. Moreover, heavy Internet users with bridging ties have higher social engagement, use the Internet for social purposes, and have been attending more local meetings and events since going online than heavy Internet users with no bridging ties. These findings may suggest that the Internet—in the hands of bridging individuals-is a tool for enhancing social relations and information exchange, and for increasing face-to-face interaction, all of which help to build both bonding and bridging social capital in communities.  相似文献   

From scraps to reams to mobile screens? An update on printing services in academic libraries     

Beth Ashmore  Sara E. Morris  Laureen Cantwell 《College & Undergraduate Libraries》2016,23(1):28-43

As a follow-up to their 2001/2002 study on printing services in academic libraries, the authors explore how the provision of printing services has changed over the last twelve years. This article explores how libraries are choosing to fund printing services as well as how technology, such as scanning and mobile devices, has changed the way printing services are provided. The results of the 2013 survey find a greater percentage of libraries are using a fee-based system for printing, and, while some technology is providing greater data and control for printing services, other technological advances are having unintended consequences for libraries’ printing infrastructure.  相似文献   

Book reviews     

Robert Heinich  Vincent Lanier  John A. Carpenter  Herbert I. Schiller  Donald D. Jensen  Carl E. Helm  James Russell  A. Thiagarajan  Arthur Babick 《Educational technology research and development : ETR & D》1969,17(3):327-342

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The health and wellbeing of international students at an Australian university     

Doreen Anne Rosenthal  Jean Russell  Garry Thomson 《Higher Education》2008,55(1):51-67

A representative sample of undergraduate and postgraduate international students at a large Australian university (n=979, 64% females) completed a mail-back survey of their health and wellbeing. Most students evaluated their current and previous physical and mental health positively. Health-related risk practices such as unprotected sexual activity, drug use, smoking and gambling, were reported by few students. There was little change in health or risk behaviours since coming to Australia and few changes that were health compromising. Few demographic or situational variables, including age and gender, had a significant impact on students' wellbeing. This study has revealed that few international students find the experience of studying in an overseas country detrimental to their wellbeing. Nevertheless, for those students who encounter difficulties or are at increased risk of health-compromising outcomes, we must ensure better delivery of health promotion education, and access to, and use of, available counselling and health services.

Doreen Anne RosenthalEmail:

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Introduction     

Alan Russell 《Asia-Pacific Journal of Teacher Education》1976,4(1):4-6

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Telling better stories: Toward critical,place-based,and multispecies narrative pedagogies in hunting and fishing cultures     

Joshua Russell 《The Journal of environmental education》2020,51(3):232-245

Abstract

This article provides an overview of the ethical and educational functions of storytelling in fishing and hunting practices and pedagogies. I explore various psychological, anthropological, and ethical theories surrounding storytelling as a way of encouraging deeper, more robust engagement among humans, nonhuman animals, and myriad beings that exist alongside of us in our multispecies communities. Drawing on animal studies, narrative theory, and critical pedagogy as well as ongoing qualitative research, I offer potential ways of incorporating a wider “ecology of stories” into situated hunting and fishing practices to engage more ethically with the people and beings that dwell in a given place.  相似文献   

The Instructional Design Environment: technology to support design problem solving     

Peter Pirolli  Daniel M. Russell 《Instructional Science》1990,19(2):121-144

The problems of efficiently producing effective instruction in areas such as industry, military, and vocational education are exacerbated by several complex factors: increasingly rapid change in technology; substantial variation in training needs and target populations within large organizations; inefficient mechanisms for performing formative evaluations; and a lack of means for efficiently incorporating new models of design into practice. In the context of these increasingly difficult problems, we present the Instructional Design Environment (IDE), a hypermedia system for designing and developing instructional material, including texts, interactive video disk, and intelligent tutoring systems. The representation of design analyses and specifications, and the design activities of IDE users are not constrained by any particular model of instructional design, but can be tailored to suit a wide range of such models. Although the system is continually evolving and exists in several forms, (Swartz and Russell, 1989) we discuss how the features of IDE suggest how computer-based design environments may provide ways simplifying the design problems for technical training in rapidly changing areas.  相似文献