Assignments as a Pedagogical Tool in Learning to Teach Science: A Case Study     

Dawn L. Garbett 《Journal of Early Childhood Teacher Education》2013,34(4):381-392

Fostering student teachers' confidence and competence to teach science in early childhood settings is a complex and challenging task for teacher educators situated in university classrooms. The research reported in this paper is based on an analysis of 3rd-year early childhood student teachers' assignments. The assignment required them to interview young children in order to find out what the children knew about a specified science topic. Three themes emerged from a constant comparison analysis. The first was the artificiality of the situation as constrained by the task. The second was the importance of sound subject knowledge in being able to ask questions of the children that were not misleading or difficult to answer. The third theme encompassed the difficulties associated with engaging young children in meaningful conversations. As a result of this analysis, the assignment task was modified to enable student teachers to work in more pedagogically appropriate and authentic ways.  相似文献   

Cognitive load and knowledge sharing in Learning Networks     

Ya P. Hsiao  Francis Brouns  Liesbeth Kester  Peter Sloep 《Interactive Learning Environments》2013,21(1):89-100

Learning Networks (LNs) are online social networks designed to support nonformal learning; they are therefore particularly suitable for self-directed learners. In LNs, learners need to construct knowledge through knowledge sharing with other participants. However, without support, learners have to organize knowledge sharing themselves and this could induce extraneous cognitive load. When working on complex learning tasks, this organizing process could have a detrimental effect on knowledge construction. To optimize cognitive load, we propose using a peer support system that applies the mechanisms of peer tutoring to support knowledge sharing. Its mechanisms reduce, we argue, the extraneous load imposed by having to organize knowledge sharing as well as induce germane load by directing the freed-up cognitive capacity to processes that contribute to knowledge construction.  相似文献   

Continuous walking and time- and intensity-matched interval walking: Cardiometabolic demand and post-exercise enjoyment in insufficiently active,healthy adults     

Kate Francis  Tom Williamson  Paul Kelly 《Journal of sports sciences》2021,39(1):23-30

ABSTRACT

We compared cardiometabolic demand and post-exercise enjoyment between continuous walking (CW) and time- and intensity-matched interval walking (IW) in insufficiently active adults. Sixteen individuals (13 females and three males, age 25.3 ± 11.1 years) completed one CW and one IW session lasting 30 min in a randomised-counterbalanced design. For CW, participants walked at a mean intensity of 65–70% predicted maximum heart rate (HR_max). For IW, participants alternated between 3 min at 80% HR_max and 2 min at 50% HR_max. Expired gas was measured throughout each protocol. Participants rated post-exercise enjoyment following each protocol. Mean HR and V˙O₂ showed small positive differences in IW vs. CW (2, 95%CL 0, 4 beat.min^?1; d = 0.23, 95%CL 0.06, 0.41 and 1.4, 95%CL 1.2 ml.kg^?1.min^?1, d = 0.36, 95%CL 0.05, 0.65, respectively). There was a medium positive difference in overall kcal expenditure in IW vs. CW (25, 95%CL 7 kcal, d = 0.58, 95%CL 0.33, 0.82). Post-exercise enjoyment was moderately greater following IW vs. CW (9.1, 95%CL 1.4, 16.8 AU, d = 0.62, 95%CL 0.06, 0.90), with 75% of participants reporting IW as more enjoyable. Interval walking elicits meaningfully greater energy expenditure and is more enjoyable than CW in insufficiently active, healthy adults.  相似文献   

The good,the bad and the wiki: Evaluating student‐generated content for collaborative learning     

Steve Wheeler  Peter Yeomans  Dawn Wheeler 《British journal of educational technology : journal of the Council for Educational Technology》2008,39(6):987-995

This paper explores the potential for wiki‐type open architecture software to promote and support collaborative learning through the use of student‐created content. It delineates some of the affordances and constraints of wiki software as an open architecture that has the potential to facilitate collaborative learning through community‐focused enquiry. It seeks to promote debate in this key area of development, and highlights some recent key contributions to the developing discourse on social software in what has been termed ‘the architecture of participation’.  相似文献   

Birthdates of medical school applicants     

Ernest L. Abel  Robert J. Sokol  Michael L. Kruger  Dawn Yargeau 《Educational studies》2008,34(4):271-275

We determined if the “relative age” effect, wherein older students in an age cohort in early grades do better academically, extends to birthdates of applicants to medical schools, and if birthdates are related to the success of their applications. We examined birthdays of applicants from Michigan to Wayne State University’s School of Medicine, relative to December 1, the cut‐off date for eligibility to enter kindergarten in Michigan. Significantly fewer applicants ≤22 years of age were born in the three‐month period (September, October, November) immediately preceding the December 1 cut‐off date, but there was no statistically significant difference in the probability of their acceptance. We conclude that delayed entry to kindergarten influences applications for medical school acceptance, but does not affect the success of their applications.  相似文献   

Contextual effects on predicting risk for reading difficulties in first and second grade     

Barbara R. Foorman  Mary York  Kristi L. Santi  David Francis 《Reading and writing》2008,21(4):371-394

This study utilized early reading assessment data from a randomized trial of 210 urban and rural schools in Texas to examine contextual effects on risk prediction in first and second grade. The primary objective was to examine the roles of (a) individual differences, (b) the grade 1 classroom, and (c) the pairing of first and second grade teachers in determining grade 2 outcomes in word reading and fluency. A second objective was to investigate whether the administration format of the assessment (paper, paper plus desktop, handheld plus desktop) or the level of teacher support (web mentoring, no mentoring) moderated the prediction. These moderator variables proved not to be significant. Subsequent analyses found that a combination of student pretest and mean of pretest classroom was a better predictor than student pretest alone. Additionally, the effect of student scores varied by teacher-pair. On average, intraclass correlations (ICCs) ranged from 6% to 17%. Differences in ICCs at the classroom level were much greater than at the school level, and differences in urban schools were twice that of rural schools.  相似文献   

Multiracial Children in Child Development Textbooks     

Francis Wardle 《Early Childhood Education Journal》2007,35(3):253-259

The 2000 US census was the first to allow respondents to check more than one race/ethnic response for their identity. About 6.8 million Americans did so, and a disproportionate percentage of them were children under age 18 years old. The purpose of this article is to examine the extent to which this change is reflected in contemporary child psychology textbooks. Twelve books were examined to determine whether they covered multiracial and multiethnic children. Results of this study showed that only two of these books addressed issues related to the healthy development of multiracial/multiethnic children in any detail; and, while several used terms such as biracial and bicultural, these terms were always used to describe single-race minority children living in a majority context. The discussion section covers possible reasons for this omission.  相似文献   

Serial anticipation and pattern extrapolation in rats as a function of element discriminability     

Steven J. Haggbloom  Dawn M. Brooks 《Learning & behavior》1985,13(3):303-308

In Experiment 1, three groups of rats were trained on one of three serial patterns consisting of different numbers of .045-g food pellets, either the simple strong monotonie pattern 14-7-3-1-0 (Group SM) or one of two complex weak monotonie patterns, 14-5-5-1-0 (Group 5-5) or 14-9-1-1-0 (Group 1-1). Learning to anticipate the terminal 0-pellet element occurred faster in Group 1-1 than in Group SM, which in turn learned faster than Group 5-5. In Experiment 2, Groups SM, 5-5, and 1-1 were trained on the first four elements of the patterns experienced by their Experiment 1 counterparts and then were tested for their ability to extrapolate the series to include the addition of a 0-pellet element in the fifth position. Extrapolation behavior was better in Group 1-1 than in Group SM, which in turn performed better than Group 5-5. The results were shown to be consistent with a memory-discrimination model of serial learning and inconsistent with a rule-learning model based on pattern complexity.  相似文献   

The moderating influence of instructional intensity and word type on the acquisition of academic vocabulary in young English language learners     

Diane August  Lauren Artzi  Christopher Barr  David Francis 《Reading and writing》2018,31(4):965-989

This study used a within-subjects design to explore two instructional conditions for developing vocabulary in second-grade Spanish-speaking English learners (ELs)—extended instruction and embedded instruction implemented during shared interactive reading. Words assigned to the extended condition were directly taught using a multifaceted approach that included visuals, bilingual definitions, examples, spelling, and partner-talk about the words’ meaning. Words assigned to the embedded condition were taught solely through brief definitions to embedded text, writing activities, and songs. In the control condition students heard the target words read aloud during shared interactive reading but without definitions or direct instruction. The study also explored the interaction between instructional condition and word type. Four types of words—abstract cognates, abstract noncognates, concrete cognates, and concrete noncognates—were randomly assigned to each condition. Nine teachers in four schools and 187 second-grade ELs participated in this within-subjects intervention, which took place in transitional bilingual classrooms. Findings indicated that across all word types, both extended and embedded instruction were more effective than the control condition in helping ELs acquire vocabulary. Findings also indicated that extended instruction was more effective then embedded instruction for all word types except concrete cognates suggesting that these young Spanish-speaking ELs were advantaged by word knowledge in their home language. Finally, while embedded instruction was less effective than extended instruction, it was much more effective than a control condition. Embedded instruction takes significantly less preparation and instructional time than extended instruction, offering teachers a practical way to teach more vocabulary to ELs.  相似文献   

Contemporary Classics? The Early Onset of Influence of Articles Published in Criminology and Criminal Justice Journals, 2010–2015     

Amanda Graham  Travis C. Pratt  Heejin Lee  Francis T. Cullen 《Journal of Criminal Justice Education》2019,30(3):348-375

Citation analysis is a valuable method for tracking the growth and transmission of scientific knowledge. In criminology and criminal justice, such analyses tend to be focused on “classic” works or on highly cited scholars over many years. As an alternative approach, we focus on work that has been cited rather quickly – what we term the “early onset” of impact. In doing so, we identified 221 of the most highly cited peer-reviewed articles, authored by 480 scholars, which were published in criminology and criminal justice journals between 2010 and 2015. Analyses reveal wide variation in substantive topics and methodological approaches, as well as a substantial gender gap with respect to authorship. Additional analyses provide insight into both journal and institutional/program prestige. We conclude with directions for future research and stress the importance of tracking over time articles that appear to be off to an early start with respect to scholarly impact.  相似文献