Visualization and Representation of Physical Systems: Wavemaker as an Aid to Conceptualizing Wave Phenomena   总被引：1，自引：1，他引：0  

Sadler  Philip M.  Whitney  Charles A.  Shore  Linda  Deutsch  Freeman 《Journal of Science Education and Technology》1999,8(3):197-209

An understanding of wave mechanics is essential to making the leap from classical to quantum systems. Wavemaker is a simulation environment developed to reveal graphically the behavior of periodic systems using a series of increasingly sophisticated visualization tools. Individual particles in a many-particle system can be instrumented for study of kinematic behavior. Parametric representations reveal time-independent behaviors. Problems dealing with propagation, reflection, and Fourier synthesis are easily studied. Use with students has revealed that many students have preconceptions about the behavior of waves and that use of this software is helpful in connecting real to simulated systems, separating holistic behaviors from those of individual elements, identifying critical parameters, and making connections between variables that are used to describe and measure periodic systems.  相似文献   

An Evaluation of Schoolwide Early Language and Literacy (SWELL) in Six Disadvantaged Schools     

Yola Center  Louella Freeman  Gregory Robertson 《International Journal of Disability, Development & Education》1998,45(2):143-172

A within‐school evaluation of Schoolwide Early Language and Literacy (SWELL) was undertaken in six disadvantaged schools in NSW in 1995 and 1996 using a sample of Kindergarten students in each school before (control group) and after (experimental group) the implementation of SWELL. As many control and experimental students as could be accessed were tested on four different early literacy measures when they were mid‐way through Year 1. Assessment at the end of the Kindergarten year and mid‐way through Year 1 indicated that experimental students significantly outperformed their control counterparts on tests measuring pseudoword decoding and reading connected text at the end of Kindergarten, and on tests measuring pseudoword decoding, reading connected text, invented spelling, and a standardised reading measure mid‐way through Year 1.  相似文献   

Video Conferencing: a Solution to the Multi-campus Large Classes Problem?     

Mark Freeman 《British journal of educational technology : journal of the Council for Educational Technology》1998,29(3):197-210

Whether due to amalgamation or export education strategies, many universities now face a problem of delivering subjects, programs and courses across more than one campus. There are significant costs to students, staff and faculty of this teaching and administrative duplication. Information and communication technologies offer potential to achieve economies of scale but the effects on other things like student learning are not so clear. The objective of this paper is to report the outcomes of a video conferencing trial in an undergraduate mass lecture context. The effects on students and staff, and support issues are highlighted through a formative and summative evaluation. Surveys, focus groups, interviews, video recordings, exam results and reflective diaries provided data for the evaluations. The results will be useful both for decision-makers considering a video conferencing solution to duplication, as well as for staff potentially involved in using the video conferencing in a mass lecture context.  相似文献   

Investigative interviewing with children: evaluation of the effectiveness of a training program for child protective service workers.     

K A Freeman  T L Morris 《Child abuse & neglect》1999,23(7):701-713

OBJECTIVE: Previous research suggests that training workshops on investigative interviewing conducted with front-line workers, such as police officers or child protective service (CPS) workers, may result in improved knowledge about appropriate strategies to use. Limited research has addressed whether such training programs result in improvements in actual interviewing skills. The present investigation assessed the impact of a training workshop on CPS workers' knowledge about conducting and behavior during investigative interviews. METHOD: Twelve CPS workers participated. To evaluate the impact of the training, a quasi-experimental design was used. Participants completed outcome measures prior to, immediately following, and 3 months following the training. Outcome measures included (a) a questionnaire to assess knowledge about interviewing practices, (b) simulated interviews with a confederate to assess participant behavior during an investigative interview, and (c) questionnaires to gather information related to the simulated interviews (e.g., materials requested for use during interview, abuse status of confederate). All participants completed 6 hours of training during 3 weekly 2-hour sessions. RESULTS: Participants' knowledge on the topic, as well as several interviewing skills during simulated interviews, improved following the training. However, the training failed to impact several key interviewing skills such as the types of questions asked or the length of the interview. CONCLUSIONS: Knowledge-based workshop training programs may not adequately prepare CPS workers to conduct appropriate investigative interviews with children who were allegedly abused. Further, knowledge about how to conduct such interviews may not be the best indicator of whether someone is prepared for this aspect of the job.  相似文献   

Debating Education: Is There a Role for Markets?     

Ashley Berner 《Educational theory》2020,70(1):105-112

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African American college students excelling in the sciences: College and postcollege outcomes in the Meyerhoff Scholars Program     

Kenneth I. Maton  Freeman A. Hrabowski  Carol L. Schmitt 《科学教学研究杂志》2000,37(7):629-654

This paper describes and assesses the effectiveness of the Meyerhoff Scholars Program at the University of Maryland, Baltimore County (UMBC). The Program is designed to increase the number of underrepresented minorities who pursue graduate and professional degrees in science and engineering. Until 1996 the program admitted African American students exclusively, and the current study focuses only on students from that group. The Meyerhoff students have achieved higher grade point averages, graduated in science and engineering at higher rates, and gained admittance to graduate schools at higher rates than multiple current and historical comparison samples. Student survey and interview data revealed that a number of program components were viewed as being especially important contributors to students' academic success: Program Community, Study Groups, Summer Bridge Program, Financial Support, Program Staff, and Research Internships and Mentors. © 2000 John Wiley & Sons, Inc. J Res Sci Teach 37: 629–654, 2000  相似文献   

Going beyond competencies: An exploratory study in defining exemplary workplace learning and performance practitioners     

Terri Freeman Smith 《Performance Improvement Quarterly》2009,22(1):27-51

This study was an exploratory investigation used to identify exemplary performance in four of the areas of expertise (AOEs) as described in the American Society for Training and Development's Mapping the Future: New Workplace Learning and Performance Competencies (2004). Qualitative data were collected from the following four AOEs: (1) delivering training, (2) designing learning, (3) improving human performance, and (4) measuring and evaluating. Research suggests that an exemplary performer could have productivity differences 12 times greater than performers at the bottom of the performance scale and 85% greater than an average performer (Hunter, Schmidt, & Judiesch, 1990). Critical incidents were collected from behavioral event interviews of 23 exemplary performers and 9 typical performers. An analysis of the findings suggests that an exemplary performer may hold at least four key behaviors: taking calculated risks, entrepreneurial and visionary planning, documented business performance to support and influence change, and political prudence and leadership savvy.  相似文献   

Time to confront Willis’s lads with a ballet class? A case study of educational orthodoxy and white working‐class boys     

Martin Ashley 《British Journal of Sociology of Education》2009,30(2):179-191

This is a retrospective study tracing the longer term effects on identity and aspiration of white working‐class boys from an area of high social deprivation. The boys were members of an acclaimed boys’ dance company and have been retrospectively interviewed as young men in their twenties. Documentary and film material dating from the time they were 14 year olds and the film Billy Elliot were used in the interviews. A media discourse driven by a view of boys ‘in crisis’ that is blind to social class and the difficulties faced by some girls was uncovered. This is found to pervade the entire Billy Elliot discourse, which focused on the sensation of a boy performing ballet rather than on the class background and historical context of the miners’ dispute. The paper questions the discourse of laddishness and the social identity that is attached to the term ‘lad’.  相似文献   

Youths in foster care with language delays: Prevalence,causes, and interventions          下载免费PDF全文

Jessie C. Krier  Tonika Duren Green  Ashley Kruger 《Psychology in the schools》2018,55(5):523-538

Children in the foster care system often face many educational challenges, including having an increased risk of language delays compared to the general population, with an estimated 35%–73% of the foster youth population experiencing language difficulties. Language delays are caused by many factors, but for children in foster care, one major antecedent is child abuse and neglect. Early delays greatly impact long‐term outcomes for children, including delays in their reading, writing, and social competence. This article explores possible causes of language delays for youths in foster care, describes the negative impact of language delays, and identifies evidence‐based practices for early intervention within the child welfare system and primary and secondary schools, specifically targeting practices for school psychologists, school counselors, school social workers, and speech pathologists.  相似文献   

Igniting the Internet: Youth and Activism in Postauthoritarian South Korea     

Ashley Hinck 《Quarterly Journal of Speech》2018,104(3):345-348

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