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101.
102.
In an effort to improve student achievement at an urban high school, teachers and administrators developed a 5-part, schoolwide vocabulary plan. Over 4 years, teachers provided students with increased opportunities to read, read to their students, developed content-specific vocabulary instruction, taught students academic words, and focused on 5 words each week with a common prefix, suffix, or root. Over the 4 years, student achievement in vocabulary and reading comprehension improved in significant ways, both on reading assessments and state achievement tests.  相似文献   
103.
Previous research has established that student learning is influenced by how accurately teachers perceive student academic ability. But studies rarely investigate the degree to which inaccuracies in teacher perceptions exacerbate demographic inequality in academic ability. Using a sample of almost 14,000 children from the Early Childhood Longitudinal Study, Kindergarten Cohort, we found that children whose literacy skills are overestimated by their teachers typically gain more literacy skills during kindergarten. Conversely, children whose skills are underestimated learn less. It is important to note that the skills of socioeconomically disadvantaged children are on average underestimated. As a result, inequalities in kindergarten literacy development stem in part from the links between teacher misperceptions and student background. We also explored the extent to which these relationships operate through practices associated with ability grouping. We found instructional grouping to be a weak facilitator of the link between teacher perceptions and student learning, suggesting the need for further research that identifies the social and structural classroom characteristics that link teacher perceptual accuracy to student learning.  相似文献   
104.
Research Findings: As policymakers expand access to preschool, the sociodemographic composition of preschool classrooms will become increasingly important. These efforts may create programs that increase the concentration of children from low-income families or, alternatively, foster the creation of socioeconomically diverse preschool classrooms. What effect the creation of such contexts would have on very young children remains unclear. Using multilevel methods and data on 2,966 children in 704 prekindergarten classrooms, this study explores the relationship between socioeconomic classroom composition and children's social and cognitive development. The results indicate positive associations between the mean socioeconomic status (SES) of the class and children's receptive language, expressive language, and mathematics learning, regardless of children's own sociodemographic backgrounds and the characteristics of their classrooms. However, the analyses indicate no association between the development of social competence and class mean SES. Practice or Policy: The links between classroom SES and language and mathematics development were comparable in size to those associated with instructional quality and even children's own SES. Neither structural nor instructional characteristics of prekindergarten classrooms explained these relationships, suggesting the possibility of direct peer effects. The findings indicate that the composition of children's classrooms should be considered an important aspect of preschool quality.  相似文献   
105.
106.
This article examines the role of noise in various aspects of Jean‐Luc Godard's filmmaking practice. Beginning with an analysis of 2 ou 3 choses que je sais d'elle (1966), it suggests that the loud noise on the soundtrack functions to disrupt the search for meaning in this film that is precisely about knowledge and cognition, providing an image of thought as an unpredictable and uncontrollable process. The influence of 1970s theoretical biology and information theory is analysed in Sauve qui peut (la vie) (1979) which applies Henri Atlan's ‘order from noise’ principle to the composition of shots, the construction of scenes and the development of narrative. Finally Godard's presentation of a complex, deterritorialised capitalist economy is considered in Nouvelle Vague (1990), and it is suggested that Godard's creation of aesthetic events – both through editing and through sound design – implies a different conception of temporality to the sequential logic of financial speculation and risk management.  相似文献   
107.
让我们从目前全世界所关注的话题,也就是所谓的世界一流大学谈起。它被人们如此频繁的提及,已成了陈词滥调。我要谈的是人们究竟期望这些学校取得什么样的成绩,但在此之前,我们需要先搞清楚为什么当今人们的期望会如此高。高度期望答案非常简单:在人类有历史以来,没有什么比教育更重要的了。每一个人都认同这一点,即良好的教育对学生个人的成功是非常重要的。同时良好的教育对一个国家的富强也是非常重要的。虽然这个观点存在很大的争议,但它仍被人们广泛接受。对于个人来说,学校教育是非常重要的。因为生活中机会的多少直接取决于个人的知…  相似文献   
108.
Across the world, people form folkbiological categories to capture their commonsense organization of the natural world. Structured in accordance with universal principles, folkbiological categories are also shaped by experience. Here we provide new evidence from the Wichi—an understudied indigenous community who live in the Chaco rainforest and speak their heritage language. A total of 44 Wichi (6- to 8-year-olds, 9- to 12-year-olds, adults) participated in an induction task designed to identify how broadly they attribute an invisible biological property (e.g., an internal organ) from 1 individual (either a human, nonhuman animal, or plant) to other humans, nonhuman animals, plants, natural kinds, and artifacts. Research Findings: These results (a) clarify the content of the Wichi’s categories and the words they use to describe them, (b) showcase the power of covert (unnamed) categories, and (c) fortify the view that human-centered reasoning is not a universal starting point for reasoning about nature. Practice or Policy: Implications of these findings for early science education are discussed. In particular, we discuss (a) how the Wichi’s construal of the natural world may be best integrated when they reach the (Western science–inspired) classroom and (b) how the current results bear on central issues in early science education more broadly.  相似文献   
109.
If it is assumed that student failure in the classroom situation is the result of inadequate performance skills rather than a lack of ability, then the attention of the educator should more properly be directed at teaching the student to develop effective methods of studying. The present experiment employed a Programmed Student Achievement (PA) procedure which required that the student evidence 100% mastery of discrete units of material. Two PA contingencies which differed in the intensity of the consequence of failing to evidence mastery were used, testing the hypothesis that the PA effect is analogous to avoidance conditioning. In addition, generalization of the effect of PA on performance in courses taken concurrently was evaluated. The performance of PA students was found to be significantly superior to that of control students on both weekly quizzes and major exams; however, performance under the two experimental contingencies did not differ. Additionally, the PA effect did not generalize to performance in other courses. The implication of these data for an avoidance hypothesis account of the PA effect is discussed.  相似文献   
110.
Resistance to interference was examined in rats that received a complex negative patterning discrimination in which XA and XB were followed by food reinforcement and XAB was not. Retention of the discrimination was evident after separate reinforcement of both A and B (Experiment 3), but not after reinforcement of either AB (Experiments 1 and 3) or XAB (Experiments 2 and 3). These data suggest that complex negative patterning discriminations are acquired configurally and that the relative similarity of the original discrimination and subsequent interference trials dictates the final degree of retention observed.  相似文献   
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