如何制订面向全体学生的课堂教学目标

体育课的教学目标应该是面向全体学生的,考虑到学生的个体差异,教学目标应该表现为:方向目标与达成目标的统一;学生目标与教师目标的统一;个体目标与群体目标的统一.     

A three-dimensional examination of the planar nature of the golf swing

Previous planar models of the downswing in golf have suggested that upper limb segments (left shoulder girdle and left arm) move in a consistent fixed plane and that the clubhead also moves only in this plane. This study sought to examine these assumptions. Three-dimensional kinematic analysis of seven right-handed golfers of various abilities (handicap 0- 15) was used to define a plane (named the left-arm plane) containing the 7th cervical vertebra, left shoulder and left wrist. We found that the angles of this plane to the reference horizontal z axis and target line axis (parallel to the reference x axis) were not consistent. The angle to the horizontal z axis varied from a mean of 133 degrees (s = 1 degrees) at the start of the downswing to 102 degrees (s = 4 degrees) at impact, suggesting a "steepening" of the left-arm plane. The angle of the plane to the target line changed from - 9 degrees (s = 16 degrees) to 5 degrees (s = 15 degrees) during the same period, showing anticlockwise (from above) rotation, although there was large inter-individual variation. The distance of the clubhead from the left-arm plane was 0.019 m (s = 0.280 m) at the start at the downswing and 0.291 m (s = 0.077 m) at impact, showing that the clubhead did not lie in the same plane as the body segments. We conclude that the left arm and shoulder girdle do not move in a consistent plane throughout the downswing, and that the clubhead does not move in this plane. Previous models of the downswing in golf may therefore be incorrect, and more complex (but realistic) simulations should be performed.     

Affirming our commitment to research: the Medical Library Association's research policy statement: the process and findings

Purpose: Building on its 1995 research policy statement, the Medical Library Association (MLA) has issued a new research policy, The Research Imperative. This paper shares the background research that informed the new policy.Methods: Semi-structured interviews were conducted with fifty-one key informants representing various library types, functions, geographic locations, ages, and ethnicities. The grounded theory approach was used to analyze the resulting textual database. Additionally, to gather input from the membership as a whole, two open forums were held at MLA annual meetings.Results: Key informant data indicated that the policy should provide roles for MLA in leadership, advocacy, collaboration, services, education, publishing, and development of a research agenda. Evidence-based library and information practice was emphasized. Six themes emerged to center the new policy: creation of a research culture, challenges, domains of research, research skills set, roles of stakeholders, and measurement of progress.Conclusion: Reflecting the interests and beliefs of the membership, The Research Imperative challenges MLA members to build a supportive culture that values and contributes to a research base that is recognized as an essential tool for future practice.

Highlights

• The Research Imperative reaffirms the Medical Library Association''s (MLA''s) commitment to research and emphasizes the need to develop health sciences librarianship''s own knowledgebase as a solid foundation for best practices.
• Informants described a growing recognition that health sciences librarians should base their practice decisions on evidence just as the health care practitioners and researchers they serve should.
• A research process that gathered data systematically from the membership guided the policy''s development.
• Members expect the association to monitor progress toward its research goals and report on it annually.

Implications

• The Research Imperative challenges the association and its members to build a culture of reflective practice in which the profession''s evidence base is routinely used.
• To advance the vision articulated in its research policy, MLA must lead by inculcating research throughout the association, identifying a research agenda, advocating for improved access to and support of library and information science research, fostering collaborations, and educating members to better use and conduct their own applied research.
• MLA should leverage its Center of Research and Education (CORE) as a repository for member-generated research, tools, and datasets.

     

Catching them before they fall: a Vygotskian approach to transitioning students from high school to university

University enabling programs, worldwide, generally target high school students who excel at school, or post-secondary students who have underperformed in their university entry examinations. Murdoch University provides an access program for Year/Grade 12 students who are not on a university pathway during their final year of high school. This intervention engages students at a transitional stage of cognitive development to: (a) determine their readiness to move to the next level of their cognitive thinking; (b) facilitate that process through collaborative learning; (c) support and nurture university aspirations and (d) provide a direct transition pathway from secondary to higher education. The influence of Vygotsky's zones of proximal development in the context of this program is discussed, and by comparing the performance of these students in their first year of university with other domestic-entry students, we argue that this enabling program prepares them for successful transition into higher education.     

新疆撒拉族历史迁徙与文化变迁研究

文章通过梳理相关历史文献并结合田野调查资料,描绘了新疆撒拉族的历史渊源和形成的历史过程;新疆撒拉族在迁徙的历史进程中,为了立足新的环境与周边民族文化进行了长期的互动、积极调适,社会文化发生了积极的变迁.     

Patterns of Achievement,Attitude, and Behavior in a Tax-Supported Alternative School

A comprehensive evaluation of the characteristics of students attending a public alternative school revealed marked differences between the experimental group (the alternative school) and a control group (students attending a regular public school). Alternative school students showed significantly lower achievement and ability on all measures, while manifesting notably greater approval of their teachers than did the control group. Sex differences in achievement, performance, and attitude were found among the free school sample, and these are contrasted with the pattern of sex differences in regular schools. The significance of these findings for the establishment and running of alternative schools is discussed.