Science concept learning by English as second language junior secondary students     

Pui-Kwong Lai  Dr Keith B. Lucas  Ed V. Burke 《Research in Science Education》1995,25(1):115-124

Recent Chinese migrant students from Taiwan studying science in two Australian secondary schools were found to explain the meanings of selected science concept labels in English by translating from Chinese. The research strategy involved interviewing the students concerning their recognition and comprehension of the science concept labels firstly in Chinese and then in English. Mean recognition and comprehension scores were higher in Chinese than in English, with indications that Chinese language and science knowledge learnt in Chinese deteriorated with increasing time of residence in Australia. Rudimentary signs of the students being able to switch between Chinese and English knowledge bases in science were also found. Implications for teaching science to ESL students and suggestions for further research are discussed.  相似文献   

College-bound high-school graduates of 1972 and 1980 compared by college major     

Lyle V. Jones  Tanja Bekhuis  Ernest C. Davenport Jr. 《Research in higher education》1985,23(3):319-331

College enrollments are shown to have increased since the 1970s for majors in computer science, engineering, and business, and to have decreased for the biological and social sciences, the humanities, and education. In both the 1970s and the 1980s, high average levels of high-school achievement are observed for declared college majors in science and engineering fields. Education and business majors display records of relatively low average levels of achievement in high school, as do college dropouts, whatever their college major.  相似文献   

Ureaplasma urealyticum and large colony mycoplasma colonization in female children and its relationship to sexual contact, age, and race.     

D L Ingram  S T White  P Lyna  K F Crews  J E Schmid  G G Koch  V D Everett 《Child abuse & neglect》1992,16(2):265-272

In order to determine if Ureaplasma urealyticum (Uu) or large colony mycoplasma (LCM) colonization was related to a history of sexual abuse, the type of sexual contact, an enlarged vaginal introitus transverse diameter (greater than 4 mm), age or race, 452 female children, ages 1-12 years, were evaluated by the Child Sexual Abuse Team at Wake Medical Center in Raleigh, NC. Thirty-six girls were deleted because of inadequate cultures. When controlled for race and age, Uu throat (T), vaginal (V), and rectal (R) colonization and LCM vaginal and rectal colonization were not related to any of the other variables listed above. The enlarged vaginal introital diameter was related to a history of sexual abuse (p less than .001). Uu and LCM vaginal colonization rates were increased in black girls as compared to white girls (p less than .05). Uu V, Uu R, LCM V, and LCM R colonization increased with age. In our study population, Uu and LCM colonization was not a useful marker of sexual contact.  相似文献   

A Resource for Eliciting Student Alternative Conceptions: Examining the Adaptability of a Concept Inventory for Natural Selection at the Secondary School Level     

Margaret M. Lucero  Anthony J. Petrosino 《Research in Science Education》2017,47(4):705-730

The Conceptual Inventory of Natural Selection (CINS) is an example of a research-based instrument that assesses conceptual understanding in an area that contains well-documented alternative conceptions. Much of the CINS’s use and original validation has been relegated to undergraduate settings, but the information learned from student responses on the CINS can also potentially be a useful resource for teachers at the secondary level. Because of its structure, the CINS can have a role in eliciting alternative conceptions and induce deeper conceptual understanding by having student ideas leveraged during instruction. In a first step toward this goal, the present study further investigated the CINS’s internal properties by having it administered to a group (n?=?339) of students among four different biology teachers at a predominantly Latino, economically disadvantaged high school. In addition, incidences of the concept inventory’s use among the teachers’ practices were collected for support of its adaptability at the secondary level. Despite the teachers’ initial enthusiasm for the CINS’s use as an assessment tool in the present study, results from a principal components analysis demonstrate inconsistencies between the original and present validations. Results also reveal how the teachers think CINS items may be revised for future use among secondary student populations.  相似文献   

Zero‐Slack,Noncritical Paths          下载免费PDF全文

Jacob V. Simons Jr. 《Decision Sciences Journal of Innovative Education》2017,15(3):254-267

The critical path method/program evaluation and review technique method of project scheduling is based on the importance of managing a project's critical path(s). Although a critical path is the longest path through a network, its location in large projects is facilitated by the computation of activity slack. However, logical fallacies in oft‐repeated statements of the relationship between slack and the critical path make it easy to overlook the phenomenon of zero‐slack, noncritical paths. This article points out the fallacies and then describes and illustrates the phenomenon. We conclude with teaching recommendations to avoid suboptimal decisions in reducing project duration.  相似文献   

Achieving Optimal Best: Instructional Efficiency and the Use of Cognitive Load Theory in Mathematical Problem Solving     

Huy P. Phan  Bing H. Ngu  Alexander S. Yeung 《Educational Psychology Review》2017,29(4):667-692

We recently developed the Framework of Achievement Bests to explain the importance of effective functioning, personal growth, and enrichment of well-being experiences. This framework postulates a concept known as optimal achievement best, which stipulates the idea that individuals may, in general, strive to achieve personal outcomes, reflecting their maximum capabilities. Realistic achievement best, in contrast, indicates personal functioning that may show moderate capability without any aspiration, motivation, and/or effort expenditure. Furthermore, our conceptualization indicates the process of optimization, which involves the optimization of achievement of optimal best from realistic best.In this article, we explore the Framework of Achievement Bests by situating it within the context of student motivation. In our discussion of this theoretical orientation, we explore in detail the impact of instructional designs for effective mathematics learning as an optimizer of optimal achievement best. Our focus of examination of instructional designs is based, to a large extent, on cognitive load paradigm, theorized by Sweller and his colleagues. We contend that, in this case, cognitive load imposition plays a central role in the structure of instructional designs for effective learning, which could in turn influence individuals’ achievements of optimal best. This article, conceptual in nature, explores varying efficiencies of different instructional approaches, taking into consideration the potency of cognitive load imposition. Focusing on mathematical problem solving, we discuss the potentials for instructional approaches to influence individuals’ striving of optimal best from realistic best.  相似文献   

Values,intelligence and client behavior in career counseling: A field study     

Lilach Sagiv  Shalom H. Schwartz 《European Journal of Psychology of Education - EJPE》2004,19(3):237-254

We examine relations of values and intelligence to overt behavior in a field study of clients in career counseling (N=365). Eleven counselors reported their clients' independence, activity and insightfulness behaviors. As predicted, both values and intelligence correlated substantially with particular behaviors. Activity and independence correlated positively with self-direction and achievement values and negatively with conformity and tradition values. Independence correlated positively with maturity values as well. Insightfulness correlated positively with maturity values and negatively with conformity and tradition values. All three behaviors correlated positively with intelligence. Values predicted behavior over and above intelligence, but intelligence added to the prediction by values only for the clients of some counselors. Implications of the findings for research on values and behavior are discussed.  相似文献   

Explaining high abilities of Nobel laureates     

Larisa V. Shavinina 《High Ability Studies》2004,15(2):243-254

Although the Nobel Prize is associated with a rare, superior degree of intellectually creative achievement, high abilities of Nobel laureates are far from well explained. This paper argues that Nobel laureates’ high abilities are determined in part by their extracognitive abilities, that is, specific feelings, preferences, beliefs and intuitive processes. The paper presents the model of extracognitive abilities based on autobiographical and biographical accounts of Nobel laureates. These abilities predict intellectually creative accomplishments of the highest level that results in great discoveries and thus outstanding scientific talent of Nobel calibre.  相似文献   

Development and Evaluation of an Inquiry-Based Elementary Science Teacher Education Program Reflecting Current Reform Movements   总被引：1，自引：0，他引：1  

Gail R. Luera  Charlotte A. Otto 《Journal of Science Teacher Education》2005,16(3):241-258

The National Science Education Standards (National Research Council 1996, National science education standards. Washington, DC: National Academy Press) and various other national and state documents call for teachers who possess science content knowledge, employ an inquiry approach in teaching, and engage in reflective practices. This paper describes a rationale for choosing particular recommendations to implement and how we incorporated those as we revised our elementary science education program. An analysis of the impact of the reformed inquiry-based content courses revealed that students who take more than one reformed content course improve their science content knowledge and efficacy towards teaching science significantly more than students who take fewer courses.  相似文献   

Teaching databases in compliance with the European dimension of higher education: Best practices for better competences     

M. Mercedes Martínez-González  Gérald Duffing 《Education and Information Technologies》2007,12(4):211-228

The Convergence process in which European Union (EU) universities are at present involved supposes that these institutions not only have to re-structure their degree programmes, but also their teaching and learning methodologies. We study the impact of this EU process on Database teaching, comparing the practices of three different European universities and using the Convergence goals as criteria. In our discussion, we identify which aspects in each university are closer to the Convergence goals, and which are likely to help in achieving these goals.  相似文献