Almost thinking counterfactually: children's understanding of close counterfactuals     

Beck SR  Guthrie C 《Child development》2011,82(4):1189-1198

Saying something "almost happened" indicates that one is considering a close counterfactual world. Previous evidence suggested that children start to consider these close counterfactuals at around 2 years of age (P. L. Harris, 1997), substantially earlier than they pass other tests of counterfactual thinking. However, this success appears to result from false positives. In Experiment 1 (N = 41), 3- and 4-year-olds could identify a character who almost completed an action when the comparison did not complete it. However, in Experiments 1 and 2 (N = 98), children performed poorly when the comparison character completed the action. In Experiment 3 (N = 28), 5- and 6-year-olds consistently passed the task, indicating that they made appropriate counterfactual interpretations of the "almost" statements. This understanding of close counterfactuals proved more difficult than standard counterfactuals.  相似文献   

Using digital images of the zebra finch song system as a tool to teach organizational effects of steroid hormones: a free downloadable module     

Grisham W  Schottler NA  McCauley LM  Pham AP  Ruiz ML  Fong MC  Cui X 《CBE life sciences education》2011,10(2):222-230

Zebra finch song behavior is sexually dimorphic: males sing and females do not. The neural system underlying this behavior is sexually dimorphic, and this sex difference is easy to quantify. During development, the zebra finch song system can be altered by steroid hormones, specifically estradiol, which actually masculinizes it. Because of the ease of quantification and experimental manipulation, the zebra finch song system has great potential for use in undergraduate labs. Unfortunately, the underlying costs prohibit use of this system in undergraduate labs. Further, the time required to perform a developmental study renders such undertakings unrealistic within a single academic term. We have overcome these barriers by creating digital tools, including an image library of song nuclei from zebra finch brains. Students using this library replicate and extend a published experiment examining the dose of estradiol required to masculinize the female zebra finch brain. We have used this library for several terms, and students not only obtain significant experimental results but also make gains in understanding content, experimental controls, and inferential statistics (analysis of variance and post hoc tests). We have provided free access to these digital tools at the following website: http://mdcune.psych.ucla.edu/modules/birdsong.  相似文献   

Psychological needs as mediators? The relationship between leisure-time physical activity and well being in people diagnosed with osteoporosis     

Gunnell KE  Mack DE  Wilson PM  Adachi JD 《Research quarterly for exercise and sport》2011,82(4):794-798

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Promoting Inquiry-Based Teaching in Laboratory Courses: Are We Meeting the Grade?     

Christopher Beck  Amy Butler  Karen Burke da Silva 《CBE life sciences education》2014,13(3):444-452

Over the past decade, repeated calls have been made to incorporate more active teaching and learning in undergraduate biology courses. The emphasis on inquiry-based teaching is especially important in laboratory courses, as these are the courses in which students are applying the process of science. To determine the current state of research on inquiry-based teaching in undergraduate biology laboratory courses, we reviewed the recent published literature on inquiry-based exercises. The majority of studies in our data set were in the subdisciplines of biochemistry, cell biology, developmental biology, genetics, and molecular biology. In addition, most exercises were guided inquiry, rather than open ended or research based. Almost 75% of the studies included assessment data, with two-thirds of these studies including multiple types of assessment data. However, few exercises were assessed in multiple courses or at multiple institutions. Furthermore, assessments were rarely based on published instruments. Although the results of the studies in our data set show a positive effect of inquiry-based teaching in biology laboratory courses on student learning gains, research that uses the same instrument across a range of courses and institutions is needed to determine whether these results can be generalized.  相似文献   

The Iliad: Principles and Lessons     

Robert H. Beck 《Educational theory》1986,36(2):179-194

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A national survey of cardiopulmonary resuscitation training for the deaf     

K H Beck  J A Tomasetti 《American annals of the deaf》1983,128(7):909-912

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Dopaminerge Modulation striataler Plastizität     

Frieder Beck  Klaus Blischke  Birgit Abler 《Sportwissenschaft》2012,42(4):271-279

This article attempts to outline the neuronal foundations of movement automatization. In particular, it is shown that an increase in automaticity corresponds to processes of synaptic plasticity in the corticostriatal and corticocortical system. This mechanism is supposed to induce changes in the neuronal representations of the respective skill. Furthermore, the role of phasic dopamine release will be discussed with respect to its modulating effect on processes of plasticity.  相似文献   

The Salience and Utility of School Sex Education to Young Women     

Katie Buston  Daniel Wight 《Sex education》2013,13(3):233-250

This article explores young women's accounts of the role that school sex education had in their learning about sex. It focuses on the influence of school sex education on behaviour, the importance of timing in understanding its utility, and the extent to which other sources of information complement or supplement school sex education. Thirty in-depth interviews and eight group discussions were conducted with female pupils from six schools in the east of Scotland. Nearly all of those interviewed cited school as a useful source in learning about sex. In particular, lessons intended to develop pupils' skills were valued. These were thought likely to influence behaviour positively in the future, although only one person could illustrate how this had already happened. A common feature of accounts was that school sex education had been delivered 'too late' for themselves or their peers, and it tended to be seen as an introduction or as supplementary to other sources, particularly friends, magazines and mothers. The utility of school sex education should not be dismissed but more attention should be given to the needs of those who become sexually active in their early teens.  相似文献   

Keeping the Focus on the Child: Supporting and Reporting on Teaching and Learning With a Classroom-Based Performance Assessment System     

Beverly Falk  Suzanne Wichterle Ort  Katie Moirs 《Educational Assessment》2013,18(1):47-75

Abstract

This article describes the findings of studies conducted on a large-scale, classroom-based performance assessment of literacy for the early grades designed to provide information that is useful for reporting, as well as teaching. Technical studies found the assessment to be a promising instrument that is reliable and valid. Follow-up studies of the assessment's use point to its positive impact on teachers' practice and on school and district policies. The studies' findings suggest that classroom-based performance assessment can be a viable accountability, as well as instructional, tool, capturing a range of students' abilities in a range of formats, and that use of such an assessment has the potential to enhance teachers' knowledge about literacy and their abilities to effectively support students' learning.  相似文献   

Reflection on their first five years of teaching: understanding staying and impact power     

Katie M. Tricarico  Jennifer Jacobs  Diane Yendol-Hoppey 《Teachers and Teaching》2013,19(3):237-259

Teacher turnover in urban schools is occurring at a breakneck pace; thus, it is important for us to understand the characteristics of teachers who stay and succeed in these settings. In order to address this need, this study examines the preparation and induction experiences of teachers who completed a Transition to Teaching – a funded urban apprenticeship program. Three research questions guided the study: (1) How do participants describe the characteristics that influence their five-year retention? (2) How do participants describe their success as teachers? and (3) How do participants describe the professional support they received in their preparation program and during the subsequent four years after completing the program? Quantitative and qualitative data via interviews, focus group, and an examination of teachers’ district performance scores were utilized, as a means of understanding teachers’ staying and impact power. Staying power refers to the ability to endure or last within challenging contexts by possessing strength enough to persevere. Impact power refers to their ability to influence student learning. Four assertions describe the factors influencing developing teachers who stay and have impact as they teach in challenging urban schools, suggesting that these teachers possess a strong work ethic, seek specific resources to improve pedagogy, have the knowledge and skills necessary to differentiate instruction, and seek teacher leadership opportunities in their schools. This study suggests several implications for teacher educators, educational leaders, administrators, and researchers working with new teachers in urban schools or with populations that are predominantly children of color.  相似文献