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11.
This study examined the direct association between parental educational expectations and adolescents’ academic self‐efficacy, as well as the moderating influence of parental academic socialization messages. Participants were 148 Latino parent–adolescent dyads with the majority of Mexican origin (80.4%). Most of the parent participants were mothers (85.8%). Adolescents were 13 (46%) or 14 (54%) years of age, and 53% identified as female. Adolescents reported their academic self‐efficacy and perceptions of their parents’ educational expectations; parents reported on their academic socialization messages of shame/pressure and effort regarding academics. The results suggest that, after accounting for parents’ level of education and immigrant status, parental educational expectations were positively associated with adolescent academic self‐efficacy. This association was stronger among adolescents whose parents reported transmitting fewer messages of shame/pressure and academic effort. These results point to the importance of nuances in the content and type of academic socialization messages within Latino families.  相似文献   
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This study explored how developmentally appropriate practices influenced the affordances of a multitouch surface in an early childhood classroom. Children, ages 4 to 5 years old, were videotaped while engaged in a storymaking application on a multitouch table. As a result of the study, we found that some challenges with the functionality undermined children's autonomous control. The researchers observed numerous instances of issues with control of the medium, including height of the table, sensitivity to multiple types of touch, and limited instructions and prompts. Implications for future research and practice are discussed.  相似文献   
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The purpose of this study was to examine the extent to which three teachers’ professional experience and existing orientations toward teaching and learning mathematics and science influenced their implementation of a project-based curriculum (i.e. project-based learning (PBL)). Data sources included interviews, videotapes of classroom activity, and a teaching philosophy questionnaire. Data analysis was conducted using an iterative coding technique. We found coherency between the teachers’ perceived orientations and their emergent ideas about PBL, their sense of PBL as being compatible with their goals, and the specific challenges with which they struggled. All the teachers wanted their students to be successful; however, different definitions of success led to quite different approaches toward teaching, and for the most part, these differences appeared to have occurred because of existing orientations the teachers held for teaching their discipline. Implications for professional development taking into account teachers’ orientations and thus their professional experience are discussed, as well as disciplinary challenges to using PBL.  相似文献   
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In 2011, according to a National Center for Education Statistics report, part-time instructional staff in all higher education institutions exceeded full-time faculty members for the first time, accounting for 50% of all instructional staff (National Center for Education Statistics [NCES], 2012 National Center for Education Statistics . ( 2012 ). IPEDS, Digest of education statistics, Winter 2011–12, human resources component, fall staff section: Table 286 [data file]. Retrieved from http://nces.ed.gov/programs/digest/d12/tables/dt12_286.asp  [Google Scholar]). The same report indicates part-time faculty in community colleges exceeds 70% of instructional staff. Perhaps more alarming are the numbers of contingent instructional staff—faculty without long-term employment commitments. According to this measure, nearly 70% of faculty members in all areas of higher education have little-to-no job stability (American Association of University Professors [AAUP], 2013 American Association of University Professors (AAUP) . ( 2013 ). Background facts on contingent faculty. Retrieved from http://www.aaup.org/issues/contingency/background-facts  [Google Scholar]; Schuster & Finklestein, 2006 Schuster , J. H. , & Finklestein , M. J. ( 2006 ). The American faculty: The restructuring of academic work and careers . Baltimore , MD : The Johns Hopkins University Press . [Google Scholar]). However, limited research exists on the working experiences of this major subpopulation of United States professors.

The purpose of this qualitative study was to explore the experiences of part-time contingent community college faculty regarding the assessment processes their institutions implemented. Through interviews, researchers gathered data identifying what 20 part-time contingent faculty professors reported regarding teaching conditions and institutional assessment procedures. Participant interviews revealed two major themes centered on a lack of institutional engagement and meaningful assessment policies or procedures.  相似文献   
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For a course built around a year of Industry Based Learning (IBL), devising an honours stream within the same four‐year time span required part‐time study during IBL. In the case of students undertaking IBL internationally, this neccessitated the provision of units of study for distance learning. However, in some units appropriate learning resources were not in existence. The solution to this problem was to video‐tape a chemistry lecture unit live.

This led to a second potential problem. Was the video‐taped lecture unit a suitable learning resource? Hence the unit was trialled on local students. After live lectures or independent video‐tape learning, students' results on an identical examination were internally standardised to their overall performance. These standardised results showed clear‐cut improvements when video‐taped lectures were utilised. Thus, for a (special) group of students studying chemistry at a distance, the generalised results of the trial suggest the telelecture mode of presentation to be a highly desirable alternative.

Biochemistry majors responded much more positively to the stimulus of the novel method of presentation (in their second, chemistry major) than the double major chemistry students. There is a clear general implication here for teachers of students in non‐preferred or service areas, whether at a distance or not.  相似文献   

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Research in Science Education - This paper addresses two methodological issues related to the assessment of teachers’ views of science. The first concerns the distinction between the...  相似文献   
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Abstract

Measurements are presented of the speed at which six different rods could be swung by four male students. Three of the rods had the same mass but their swing-weight (i.e. moment of inertia) differed by large factors. The other three rods had the same swing-weight but different masses. Our primary objective was to quantify the effects of mass and swing-weight on swing speed. The result has a direct bearing on whether baseball, tennis, cricket and golf participants should choose a heavy or light implement to impart maximum speed to a ball. When swinging with maximum effort, swing speed (V) was found to decrease as swing-weight (I o) increased, according to the relation V?=?C/I o n , where C is a different constant for each participant and n?=?0.27 when I o >?0.03 kg?·?m2. Remarkably similar results were obtained previously with softball bats (where n?=?0.25) and golf clubs (where n?=?0.26). Swing speed remained approximately constant as swing mass increased (when keeping swing-weight fixed). The implications for racket power are discussed.  相似文献   
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