Post-secondary Science Students’ Explanations of <Emphasis Type="Italic">Randomness</Emphasis> and <Emphasis Type="Italic">Variation</Emphasis> and Implications for Science Learning     

Rebekka Darner Gougis  Janet F. Stomberg  Alicia T. O’Hare  Catherine M. O’Reilly  Nicholas E. Bader  Thomas Meixner  Cayelan C. Carey 《International Journal of Science and Mathematics Education》2017,15(6):1039-1056

The concepts of randomness and variation are pervasive in science. The purpose of this study was to document how post-secondary life science students explain randomness and variation, infer relationships between their explanations, and ability to describe and identify appropriate and inappropriate variation, and determine if students can identify sources of variation. An instrument designed to test statistical concepts was administered to 282 college students from three universities, ranging from introductory non-science majors to science graduate students. Students readily distinguished between causes of variation. A naïve no-pattern concept of randomness persisted from first-year non-science majors to senior-level science majors, contributing to incorrect responses on the variation instrument. Students’ expressions of randomness were better predictors of performance on the variation instrument than their expressions of variation. It is argued that inclusion of everyday language uses of randomness in instruction can bridge the gap between vernacular and scientific uses of this term.  相似文献   

Map Perspective and the Learning of Text     

Johnson Janet T.  Verdi Michael P.  Kealy William A.  Stock William A.  Haygood Robert C. 《Contemporary educational psychology》1995,20(4)

In two studies, undergraduates learned a map of the city of Rome in either a flat survey map or a one-point perspective format. The perspective map lead to greater feature recall in the first study and to better memory for a related text when features were correctly located in the second study. Both studies suggest that map scanning patterns may differ depending on the learner′s point of view.  相似文献   

Assessing activity–based learning for a networked course     

Janet Macdonald  & Peter Twining 《British journal of educational technology : journal of the Council for Educational Technology》2002,33(5):603-618

Networked environments offer new scope for presenting activity based courses, in which activities and reflection form the central backbone of course pedagogy. Such courses promise an enriching approach to study, but there are also challenges for the design of assessment. This paper describes a qualitative study of student and tutor perspectives on the assessment of an innovative undergraduate course at the UK Open University which has employed an activity–based approach. It discusses the relationship between assessment, student participation, and the development of skills, and then outlines the priorities for the design of assessment for such courses.  相似文献   

Professors' and students' conceptualizations of the learning task in introductory physics courses     

Janet Gail Donald 《科学教学研究杂志》1993,30(8):905-918

What are students expected to learn in physics courses? Eight expert physics teachers and researchers, two from the University of Western Ontario in Canada, Cambridge University in the United Kingdom, Stanford University in the United States of America, and Monash University in Australia, described their perceptions of learning in their courses. Students from the courses were then interviewed for their perceptions of learning in physics courses. In their courses, professors focused on the development of intellectual skills, assuming that students had a specific physics vocabulary. Students, however, were aware of their own limitations and suggested that professors should take nothing for granted. Students considered that to be a good teacher, a professor should know the perspective of the students and should start at the students' level. The results suggested that the intellectual challenge of learning physics merits early explanation.  相似文献   

The Emotionally Intelligent Early Childhood Educator: Self-Reflective Journaling   总被引：1，自引：0，他引：1  

Janet?Pickard?KremenitzerEmail author 《Early Childhood Education Journal》2005,33(1):3-9

A current interest in education is the growing awareness that the development of social and emotional skills in children is critical for the foundation of academic knowledge in the classroom. The early childhood educator is in a position to be a powerful nurturer of the social emotional development in young children. It is important, therefore, to challenge early childhood teachers, particularly veteran teachers, to take a closer look at their own social and emotional skills and to systematically reassess these skills through an emotionally intelligent “lens”. The field of emotional intelligence is a new and exciting area of academic research that looks at emotional abilities within the following four domains: (1) perception skills; (2) accessing skills; (3) understanding skills; and (4) regulation skills. This article presents a userfriendly methodology to assess and enhance the emotional intelligence abilities of teachers, and thereby impact the abilities of the young children they teach.  相似文献   

Silent versus oral reading comprehension and efficiency     

R. Steve McCallum  Shannon Sharp  Sherry Mee Bell  Thomas George 《Psychology in the schools》2004,41(2):241-246

Seventy‐four students read passages from an individually administered test of reading comprehension (a subtest from the Test of Dyslexia, a test of reading and related abilities currently in development; McCallum & Bell, 2001), and then answered literal and inferential questions. Students were randomly assigned to one of two conditions; 39 students read the passages silently and 35 read orally, with time recorded for each passage read. Comprehension and time were dependent measures for a Multivariate Analysis of Covariance (MANCOVA) and two follow‐up Analyses of Covariance (ANCOVA). After controlling for reading ability, results from the MANCOVA showed a significant combined effect ( p < .05); however, a comparison of mean reading comprehension scores showed no significant difference between silent readers and oral readers ( p > .05). On the other hand, with reading ability controlled, silent readers took significantly less time to complete passages compared to those who read orally ( p < .02). In fact, students took 30% longer to read orally than silently, on average. When test directions do not specify either oral or silent reading and error analysis is not a goal, testing will be more efficient via silent responding with no loss of comprehension. © 2004 Wiley Periodicals, Inc. Psychol Schs 41: 241–246, 2004.  相似文献   

Children's temperament and behavior problems predict their employed mothers' work functioning     

Hyde JS  Else-Quest NM  Goldsmith HH  Biesanz JC 《Child development》2004,75(2):580-594

Numerous studies have been conducted on the impact of dual-earner parents' employment on their children, yet the reverse process-the impact of children and their behavior on the work functioning of their parents-has been ignored. This study investigated spillover from the mother role to the work role in a sample of more than 300 families. At 4 months, 12 months, 3.5 years, and 4.5 years of age, child's difficult temperament was significantly associated with mother's work outcomes, including work role quality and rewards from combining work and family. The evidence was consistent with a structural model in which maternal sense of parenting competence and maternal depressed affect mediated these effects.  相似文献   

Educational program on evaluation of alleged sexual abuse victims     

Roberta A. Hibbard M.D.  Janet Serwint M.D.  Monica Connolly M.S.W. 《Child abuse & neglect》1987,11(4):513-519

Increased awareness of the problem of child sexual abuse has resulted in increasing numbers of children presenting to professionals for the evaluation of possible sexual victimization. A multidisciplinary project to develop professionals' knowledge and skills in the identification and evaluation of possible victims is described. The program focused on the child as a victim and emphasized developmental perspectives with regard to identification, interviewing children, the medical examination, and children in the legal system. Fifty-one medical and social work professionals from ten Indiana counties attended the program and responded to questionnaires about their experience and knowledge. Of 40 (78%) respondents, 63% had had no previous training in the medical evaluation for child sexual abuse. Child protective workers referred alleged victims primarily to the child's regular physician (37%) or emergency room (31%) for medical examination. Knowledge about child sexual abuse improved significantly at two weeks postsymposium (p = .001) and remained improved at six months postsymposium (p less than .02). These original participants have subsequently organized similar multidisciplinary programs in their local communities for medical, social, law enforcement, and legal professionals; thus, they have been "seeds" for further educational and cooperative efforts throughout the state.  相似文献   

Formative Automated Computer Testing (FACT)     

Nicoll Hunt  Janet Hughes  & Glenn Rowe 《British journal of educational technology : journal of the Council for Educational Technology》2002,33(5):525-535

This study describes the context for the development of a tool to formatively assess information technology skills of students. The tool provides a reliable and valid assessment of word processing competency, utilizing automation to apply the test instrument via the Microsoft Office package. Tests can be designed directly by tutors, and delivered via a network. Evaluation of the tests suggests that immediate automated testing is preferred by students compared to a traditional written test. There is evidence that the tool improves the IT skills of its users, whereas a traditional written test has no such beneficial effect.  相似文献   

Fostering Distributed Science Learning Through Collaborative Technologies     

Jesús Vázquez-Abad  Nancy Brousseau  Waldegg C. Guillermina  Mylène Vézina  Alicia D. Martínez  Janet Paul de Verjovsky 《Journal of Science Education and Technology》2004,13(2):227-232

TACTICS (French and Spanish acronym standing for Collaborative Work and Learning in Science with Information and Communications Technologies) is an ongoing project aimed at investigating a distributed community of learning and practice in which information and communications technologies (ICT) take the role of collaborative tools to support social construction of knowledge. This community is composed of researchers, graduate students, and high-school teachers and their students, from six schools and four universities in Canada and Mexico. It set out in fall 2000 to develop a community around the general topic of integrating concepts in science school subjects. Once a prototype community is established, it can become a terrain where different aspects could be studied. Subsequently, researchers could gradually take a back seat allowing as well as ensuring the autonomy of the school members involved and, thereby, the viability of the learning community. The set up of the proposed prototype distributed science learning community was therefore an essential yet far from trivial first step. This paper discusses the process of setting up the community and the lessons learned.  相似文献