Courtship is a fertile setting for culturally defined strategies. A common form of competition is criticizing the other group for being inadequate mates. Stories about romance between human beings and non-human participants allow such criticism. Movies about men finding mechanical partners are common. Non-human females are seen as more satisfactory than women, especially when women are transforming their roles to be less subservient. 相似文献
In this paper, we discuss some concerns and recommendations of Saultz and Fusarelli (2017), offering nuanced and detailed views of online schooling from a different perspective. This includes addressing challenges regarding online learning such as fluctuating enrollments, financial concerns, quality assurance, and accountability. In addition, we propose recommendations related to funding, better quality data, and oversight and monitoring. We conclude with a short discussion of the need for differentiated research for specific online learning contexts. 相似文献
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
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
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
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
Two current biopic movies, Harriet and The Irishman, present the life stories of real people who have been involved with slavery and organized crime. These images contradict the virtuous image of America that is fundamental to our sense of national identity and patriotism. Could this contradiction lead to oppositional movements for social change? 相似文献
This study compared the effects of four electronic portfolio curricula on pre‐service and beginning teachers' self‐ratings of their professional development (n = 207), using a 34 item electronic Portfolio Assessment Scale (ePAS). Three formative portfolios, A, C and D, had teacher development as a primary objective and used participants' narrative reflections on students over a 2–3 month period. One summative portfolio, B, assessed teacher accountability through participants' analyses of professional teaching standards concerning students during 1–2 week teaching units. Factor analyses of the ePAS assessments for each portfolio and all four combined yielded the same five factors concerning professional outcomes: overall teacher development, including reflective skill (F1), an understanding of assessment roles (F2), an understanding of backwards planning (F3), the benefit of analyzing student work (F4) and the benefit of teacher peer collaboration (F5). For F1, F3 and F5 the means of the formative portfolios A, C and D were significantly higher than those of portfolio B. No differences were found among the portfolios concerning the benefits of analyzing student work (F4). The researchers concluded that formative portfolios that focused on teacher development better supported professional outcomes than did the summative accountability portfolio. It was concluded that portfolios should not be used for the summative accountability of teachers.
Dans cette étude nous avons comparé les effets de quatre programmes scolaires à portefeuille électronique sur les autocritiques que des enseignants débutants ont faites de leur développement professionnel (n = 207). Nous nous sommes servis d'une échelle d'évaluation à portefeuille électronique de 34 points (ePAS). L'objectif principal des trois portefeuilles formatifs A, B et D était le développement de l'enseignant. Pour y parvenir nous avons employé des réflexions narratives sur les élèves pendant une période de deux à trois mois. A travers un portefeuille sommaire, B, nous avons évalué la responsabilité des enseignants au moyen des analyses que les participants ont faites des normes de l'enseignement professionnel des unités d'apprentissage d'une à deux semaines. Nous avons conclu que les portefeuilles formatifs qui se concentraient sur le développement des enseignants ont mieux soutenu le rendement professionnel des jeunes enseignants.
Este estudio compara los efectos de cuatro portafolios electrónicos curriculares sobre las auto evaluaciones de profesores antes de que comiencen a ejercitar la enseñanza y de profesores que inician su desarrollo profesional (n = 207), utilizando 34 ítemes de la escala de Portfolio Assessment (Valorización de Portafolios) (ePAS). Tres portafolios formativos, A, C y D, tienen como objetivo principal el desarrollo de la enseñanza usando las reflexiones por escrito de los participantes sobre estudiantes en un período de dos a tres meses. En un portafolio de síntesis, B, se valora la responsabilidad de los profesores. Durante una unidad educacional de una a dos semanas, los participantes evalúan métodos de enseñanza y, a través de este análisis, valoran la responsabilidad de los profesores. Se concluye que los portafolios formativos que se enfocan en el desarrollo de la enseñanza facilitan de mejor manera el resultado del desarrollo de los profesionales jóvenes.
Diese Arbeit vergleicht die Wirkungen von vier Lehrplänen im Bereich elektronischer Portfeuilles auf die beruflichen Selbstbewertungen von werdenden und neueingetretenen Lehrkräften. Verwendet wird ein elektronisches Portfeuillewertungssystem (ePAWS) von 34 Punkten. Die Entwicklung der Lehrer ist die primäre Absicht von drei formativen Portfeuilles, A, C und D, in denen die Teilnehmer ihre Selbstbeobachtungen über zwei bis drei Wochen aufgeschrieben haben. Die Verantwortlichkeit von Lehren wird in einem zusammenfassenden Portfeuille B eingesschätzt, durch eine Beurteilung von lehrberuflichen Maßstaben der Teilnehmer in Bezug auf Studenten im Verlauf einer ein‐ bis zweiwöchigen Lehreinheit. Bewiesen wurde, daß die formativen Portefeuilles, die sich auf Lehrentwicklung konzentrierten, die Weiterentfaltung von neueingestiegenen Lehrkräften besser fördern. 相似文献
