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A low-cost (US$350) satellite receiving station was assembled and operated within a classroom environment in Gainesville (Florida) on October 2001 for acquiring satellite data directly from the Advanced Very High Resolution Radiometer (AVHRR) satellites. The simplicity of the satellite signal makes this source of real-time satellite data readily accessible to the K-16 educational community. The educational strategy of this program sought to achieve pedagogical effectiveness within the sciences, mathematics, and technology through the cultivation of applied, critical, and analytical skills. The applied hands-on laboratory and lecture experiences aimed at enabling students to visualize and integrate the various concepts presented in the classroom. The characteristics of the satellite data provide students and educators with live visible and infrared images that allow for the visualization and exploration of dynamic scientific concepts, making the AHVRR-APT system a suitable educational tool for complementing the K-16 curricula. This educational experience relied on inexpensive radio equipment for accessing satellite data through the exploration of modern space technology. When compared to Internet-based sources of AVHRR data, the virtual nature of Internet portals cannot provide students with a live satellite data acquisition experience, such as that available through a classroom-based AVHRR-APT satellite receiving station.  相似文献   
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Beginning in 2002, researchers developed, implemented, and evaluated the efficacy of an English reading intervention for first-grade English learners using multiple randomized control trials (RCTs). As a result of this efficacy work, researchers successfully competed for an IES Goal 4 effectiveness study using the same intervention. Unlike the efficacy studies, the findings from the effectiveness study begun in 2011 did not yield significant differences in favor of the treatment. We investigated the identification and pre-intervention performance levels of students in efficacy and effectiveness RCT studies and provide data and compare samples from these studies as one means of explaining variation in findings. Findings indicate that pre-intervention performance levels are higher for students in effectiveness RCT studies. This article serves as an exemplar for other effectiveness studies that may not replicate findings from previous efficacy trials.  相似文献   
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The present study explores practitioner perceptions of and observations about the adoptive parent, birth parent, and adoptee interactions that regulate open adoption relationships. Grounded in family systems theory, practitioner interviews (N = 19) were analyzed to understand the degree to which open adoption shapes the family system as well as the opportunities, challenges, and considerations experienced by individuals in open adoption. Findings reveal that open adoption relationships consist of numerous complex relationships. This complexity generates significant opportunities for connection. At the same time, the complexity of the system generates challenges. Social networking provides costs and rewards that require consideration on an individual basis. Findings offer implications for the utility of family systems theory in illuminating diverse family construction as well as open adoption communication research.  相似文献   
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Although adoptees are often stigmatized for their nonnormative identity, adopted individuals must communicate with nonfamily members to integrate their adoptive identity into their definition of self. In the current study, adult adoptees (n = 25) were interviewed about their processes for disclosing their adoptive status in their social networks. Drawing upon communication privacy management (CPM) theory, inductive analyses demonstrated that adoptees created motivational and contextual criteria to enact privacy rules surrounding adoption. Adoptees maintained privacy to avoid messages of “difference,” insensitive comments, imperviousness, and negative opinions about adoption. Adoptees disclosed about their adoption to build relational closeness and to educate/advocate for adoption. These privacy decisions were undergirded by the societal assumption that families are biologically linked or the discourse of biological normativity (Suter et al., 2014).  相似文献   
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How the use of computers in mathematics classrooms was viewed by students in two middle years mathematics classrooms was the focus of the research described in this paper. The primary data sources consisted of questionnaires, classroom observations supported by videotaping of mathematics lessons, and interviews with two girls and two boys from each class. Thus both qualitative and quantitative methods were used. Girls viewed the computer-based lessons less favourably than did boys. In general, the boys were likely to believe that computers contributed to their experiencing pleasure in these lessons, and to making mathematics more relevant to them. Girls were typically more concerned about whether computers facilitated learning and enabled success in mathematics. The attitudes of students to computer-based mathematics were related to their views of computers.  相似文献   
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In the workplace, a supervisor’s communication of dominance can be used to help accomplish tasks and complete work. Further, perceptions of credibility can be integral in influencing employees and creating an open work climate. The goal of this investigation was to understand how supervisors’ messages of dominance were related to perceptions of supervisor credibility. In this study, 303 participants working in various industries completed measures of interpersonal dominance and credibility about their direct supervisor. As hypothesized, influence and focus/poise were positively related to competence, goodwill, and trustworthiness, whereas conversational control was negatively related to goodwill and trustworthiness. Further, self-assurance was negatively related to goodwill. Regression analyses determined that influence and focus/poise had the strongest relationship to all three dimensions of credibility.  相似文献   
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Research calls for teacher education to prepare early childhood educators for the needs of diverse and marginalized young children and their families in the U.S. With an increasing cultural divide between teachers and students, some early childhood educators may demonstrate limited understanding for how diverse cultural, linguistic, racial, and socioeconomic backgrounds inform the daily functions of families of young children. In this article, we examine how the use of experiential learning vis-à-vis conducting a home visit with a family from a diverse and marginalized background can shape early childhood preservice teachers’ (PST) development of cultural humility, an important component of cultural competence. During this experiential learning, PSTs engaged in critically reflective practices to uncover and challenge their implicit biases. While discovering the strengths and challenges among their home visit families, PSTs also learned what they had in common with the families. PSTs noted how the home visit process informed their work as future early childhood educators.  相似文献   
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