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21.
Abstract

This study examined the perceptions and practices of certified preschool teachers and children regarding play. A sample of 102 Pre‐Kindergarten regular (Pre‐K regular) teachers and 61 Pre‐Kindergarten with disabilities (Pre‐K with disabilities) teachers in an urban school district were surveyed. A sub‐group of 46 teachers and 72 4‐year‐old children were interviewed. In contrast to teachers in a previous study who did not have teacher certification, the teachers in the present study believed that play supported children's learning and development and indicated that play was an integral part of their curriculum. Approximately 30% of the teachers who were interviewed said they did not allow children's rough and tumble play either because they thought it was dangerous or it would promote aggression. All of the Pre‐K with disabilities teachers and half of Pre‐K regular teachers said they provided support for play of children with disabilities in their classes. Their reported support focused more on cognitive aspects of play than on social interactions. Children's ideas about play were similar to those in the 1987 study.  相似文献   
22.
In this monograph, we argue for the establishment of a developmental science of politics that describes, explains, and predicts the formation and change of individuals’ political knowledge, attitudes, and behavior beginning in childhood and continuing across the life course. Reflecting our goal of contributing both theoretical conceptualizations and empirical data, we have organized the monograph into two broad sections. In the first section, we outline theoretical contributions that the study of politics may make to developmental science and provide practical reasons that empirical research in the domain of politics is important (e.g., for identifying ways to improve civics education and for encouraging higher voting rates among young adults). We also review major historical approaches to the study of political development and provide an integrative theoretical framework to ground future work. Drawing on Bronfenbrenner's ecological systems model as an organizing scheme and emphasizing social justice issues, we describe how factors rooted in cultural contexts, families, and children themselves are likely to shape political development. In the second section of the monograph, we argue for the importance and utility of studying major political events, such as presidential elections, and introduce the major themes, rationales, and hypotheses for a study of U.S. children's views of the 2016 U.S. presidential election. In addition, we apply a social-justice lens to political thought and participation, addressing the role of gender/sex and race/ethnicity in children's political development broadly, and in their knowledge and views of the 2016 U.S. presidential election specifically. In interviews conducted within the month before and after the election, we examined two overarching categories of children's political attitudes: (a) knowledge, preferences, and expectations about the 2016 election, and (b) knowledge and attitudes concerning gender/sex and politics, particularly relevant for the 2016 election given Hillary Clinton's role as the first female major-party candidate for the presidency. Participants were 187 children (101 girls) between 5 and 11 years of age (M = 8.42 years, SD = 1.45 years). They were recruited from schools and youth organizations in five counties in four U.S. states (Kansas, Kentucky, Texas, and Washington) with varying voting patterns (e.g., Trump voters ranged from 27% to 71% of county voters). The sample was not a nationally representative one, but was racially diverse (35 African American, 50 Latinx, 81 White, and 21 multiracial, Asian American, Middle Eastern, or Native American children). In addition to several child characteristics (e.g., age, social dominance orientation [SDO]), we assessed several family and community characteristics (e.g., child-reported parental interest in the election and government-reported county-level voting patterns, respectively) hypothesized to predict outcome variables. Although our findings are shaped by the nature of our sample (e.g., our participants were less likely to support Trump than children in larger, nationwide samples were), they offer preliminary insights into children's political development. Overall, children in our sample were interested in and knowledgeable about the presidential election (e.g., a large majority identified the candidates correctly and reported some knowledge about their personal qualities or policy positions). They reported more information about Donald Trump's than Hillary Clinton's policies, largely accounted for by the substantial percentage of children (41%) who referred to Trump's immigration policies (e.g., building a wall between the United States and Mexico). Overall, children reported as many negative as positive personal qualities of the candidates, with negative qualities being reported more often for Trump than for Clinton (56% and 18% of children, respectively). Most children (88%) supported Clinton over Trump, a preference that did not vary by participants’ gender/sex or race/ethnicity. In their responses to an open-ended inquiry about their reactions to Trump's win, 63% of children reported negative and 18% reported positive emotions. Latinx children reacted more negatively to the election outcome than did White children. Girls’ and boys’ emotional responses to the election outcome did not differ. Children's personal interest in serving as U.S. president did not vary across gender/sex or racial/ethnic groups (overall, 42% were interested). Clinton's loss of the election did not appear to depress (or pique) girls’ interest in becoming U.S. president. With respect to the role of gender/sex in politics, many children (35%) were ignorant about women's absence from the U.S. presidency. Only a single child was able to name a historical individual who worked for women's civil rights or suffrage. Child characteristics predicted some outcome variables. For example, as expected, older children showed greater knowledge about the candidates than did younger children. Family and community characteristics also predicted some outcome variables. For example, as expected, participants were more likely to support Trump if they perceived that their parents supported him and if Trump received a greater percentage of votes in the children's county of residence. Our data suggest that civic education should be expanded and reformed. In addition to addressing societal problems requiring political solutions, civics lessons should include the histories of social groups’ political participation, including information about gender discrimination and the women's suffrage movement in U.S. political history. Providing children with environments that are rich in information related to the purpose and value of politics, and with opportunities and encouragement for political thought and action, is potentially beneficial for youth and their nations.  相似文献   
23.
分布式数据中心是实现云计算的物理与技术保证。Berkeley计算机系教授David A.Patterson提出,以服务为核心的需求促使分布式数据中心产生,如果说计算以数据中心的模式进行的话,那么,它的指令、它的语言是什么呢?  相似文献   
24.
25.
Induction programs are essential in addressing the unique pedagogical and content needs of secondary science teachers. Yet most secondary science teachers have little access to general induction programs, and even less opportunity to participate in specialized science induction programs. This study examines the impact of three different induction programs on secondary science teachers. The teachers were matched by grade level among three groups; one group participated in a science‐focused support program, another participated in a general support program, and a third had no formal support. All teachers were monitored during the spring semester to understand their teaching beliefs, instructional practices, and experiences in the classroom. The analysis of data revealed that the secondary science teachers in the science‐focused support program implemented more student‐centered inquiry lessons, held beliefs aligned with student‐centered practices, and felt fewer constraints in their teaching than did the other two groups of teachers. This study reinforces the importance of induction programs for teachers, suggests there is a need for specialized support programs for beginning science teachers, and recommends that universities and school districts work together to develop such programs. © 2003 Wiley Periodicals, Inc. J Res Sci Teach 40: 77–97, 2003  相似文献   
26.
Visual persistence was investigated in adults with and without dyslexia in order to determine whether the adults with dyslexia demonstrate problems similar to those found in childhood dyslexia. Using a temporal separation threshold measure and procedures derived from signal detection theory, sensitivity to sequentially presented form information was determined for the two types of adults. The results showed that the sensitivity of the adults with dyslexia was impaired relative to that of the nondisabled adults when parts of a test stimulus were presented to adjacent retinal areas. This result suggests that, under certain conditions, visual persistence is longer for adults with dyslexia. The results are discussed within the context of a recent theory of dyslexia (Lovegrove, Martin & Slaghuis, 1986) that incorporates the operation of sustained and transient visual mechanisms.  相似文献   
27.
This study was designed to determine the predictive validity of selected admissions variables used by the University of Kentucky College of Medicine. Data for the study were collected from 586 students admitted to the M.D. program from 1961 to 1968. These students were categorized into one of three groups (Successful [SUCC], Successful with Extended Study [SWES], and Lost to Medicine [LTM]) based upon their performance in medical school. A two-way analysis of variance and the use of a post hoc Scheffé method of multiple comparisons indicated significant differences between the SUCC group and the combined SWES and LTM groups. Therefore, the data revealed the predictive ability of two admissions variables and suggested the need for additional research into the subjective variables used in the admissions process.  相似文献   
28.
In the United States, being black, male, or growing up in a low-income and/or single-parent household have all been identified as risk factors for maladjustment during childhood. Interpretation of these findings is, however, often difficult because of the well-known associations among these variables. In the present study, we compared predictions of 3 different forms of children's competence from each of these 4 variables. In a sample of 868 black and white elementary school children from 2-parent and mother-headed 1-parent homes, we studied 3 aspects of school-based competence: conduct, peer relations, and academic achievement. Results showed that although the independent variables accounted for different amounts of variance in each domain of competence, income level and gender were better overall predictors of children's competence in conduct and peer relations than were ethnicity or household composition. Income level and ethnicity were better overall predictors of academic achievement than were gender or household composition, although each of the 4 variables made a significant contribution. Overall, income level and gender were thus the strongest predictors of children's competence. Black children were, however, more likely than white children to live in low-income homes. Our results thus highlighted some correlates of the unequal distribution of economic resources among black and white children growing up in the United States today.  相似文献   
29.
Driven by claims of efficacy, flexibility and resource effectiveness, higher education is increasingly utilising the Web as an instructional tool. The claims for pedagogical effectiveness are often just that – claims — and appear not to have been proven in the reality of subject presentation and evaluation. Thus, it is necessary to examine assumptions regarding the benefits of Web‐based instruction in terms of effectiveness. This article discusses aspects of an investigation which examined and compared the effectiveness of HIV/AIDS related collaborative tutorial activities carried out in both a Web‐based learning environment and a face‐to‐face class situation within an undergraduate health education subject. Effectiveness of the pedagogical strategy and the different learning environments were measured in terms of observed learning outcomes and reported perceptions of the learners regarding their learning experience. Preliminary results based on measured learning outcomes related to the subject matter, HIV/AIDS, demonstrated that collaborative learning activities were significantly more effective in the Web‐based than in the class environment. Additionally, the vast majority of learners perceived the Web‐based environment to be as effective or more effective than the face‐to‐face, class environment in terms of facilitating their understanding of the issues explored in the subject.  相似文献   
30.
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