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In this paper, we prove that any polygon P in R2 containing a fixed smooth. strictly convex and origin-symmetric body Γ whose boundary is real analytic in its interior, can be determined by its Γ-section functions among the polygons. 相似文献
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In this paper,several inequalities for inclusion measures of convex bodies were obtained.The inclusion measure was proved to have concavity by considering the property of relative inner parallel body. 相似文献
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2002 年,在北京召开“ 国际数学家大会” 之际,在重庆举办了“ 廿一世纪数学课程与教学改革国际学术研讨会”.与会者从国际的视野,审视世界数学教育课程发展概况和遇到的难题,对日本、韩国、新加坡、法国、美国、俄罗斯和荷兰等国的课程发展概况进行了专题报告.中国的数学课程新标准,需要从“ 后现代” 社会以适性教育角度审视分析,并与各国数学课程的发展趋势加以比较. 相似文献
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Soi-kei Mak Kwok-cheung Cheung Kaycheng Soh Pou-seong Sit Man-kai Ieong 《教育心理学》2017,37(10):1206-1221
Enjoyment of reading, diversity of reading and metacognitive awareness of reading strategies are cognitive and affective variables pertaining to three facets of reading engagement for students to read happily, widely and skilfully. These have been found to be related to effectiveness in reading instruction. They together form a focus for this study to examine the underlying student- and across-level mechanisms to explain gender differences in reading performance of Macao students. Drawing data from Programme for International Student Assessment (PISA) 2009 Study, the mediation effects of gender and the school’s gender composition on reading performance are analysed. Two findings are of both theoretical and pedagogical interests. Firstly, the three facets of reading engagement from the nurture perspective explain substantially the within-school gender gap. Secondly, in coeducation context where students read happily and skilfully, there are gender-specific peer influences across-level onto student reading performance. Implications for gender-inclusive reading instruction programmes are discussed. 相似文献
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张绮文 《暨南大学华文学院学报》2007,(3):49-54
本文汇报了香港初小学生识字测试的工作。识字测试兼及汉字字音、字形、字义的认识。测试的汉字从香港小学语文大纲所列生字表分级随机抽出。测试结果显示香港初小学生对初小阶段的字,字音得分较高,字义次之,字形得分最低,表明学生对初小阶段的字的字音掌握较佳,字形掌握较低。当加入高小的字测试时,字音,字形,字义得分相对地下降,字音、字形、字义每项得分差别不大。识字测试结果也显示香港初小学生最先掌握字的音义,其次才掌握字的形义,最后才掌握字的音形。 相似文献
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钱穆在抗日战争时期,于颠沛流离之中撰写《国史大纲》,欲以重建中华民族对自己历史文化的信心,通过讲述中国数千年的历史,探讨中华民族文化的生成,其间屡经冲击而一再复兴,藉以阐述中华民族文化的恒久生命力所在.《国史大纲》展现了钱穆的“新通史”视野. 相似文献
8.
Kwok-cheung Cheung 《教育心理学》2017,37(8):965-982
AbstractMany students from disadvantaged homes participating in Programme for International Student Assessment (PISA) 2012 were classified as academic resilient (called disadvantaged high achiever, the DHA in this study). In comparison with peers of comparable home background status, there were also students from advantaged homes performing far behind standard in mathematical literacy performance (called advantaged low achiever, the ALA). Drawing data from the PISA 2012, this study sought to examine the similarities and differences in learning mathematics characteristics (ie gender, family and academic background, and resilience in learning variables) amongst students of the top five high-performing Asian economies, ie Shanghai, Singapore, Hong Kong, Taiwan and Korea. The results of the logistic regression analyses showed that variables like family and academic background, as well as resilience in learning mathematics variables (eg familiarity with mathematical concept, mathematics self-efficacy, mathematics self-concept and mathematics anxiety) are able to predict whether a student of comparable disadvantaged (or advantaged) home background is more likely to be classified as DHA (or ALA) or not. The findings are important to shed light on the principles and methods of mathematics education so as to help the low achievers, whether advantaged or disadvantaged, to advance to higher level of mathematical literacy attainment. 相似文献
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In this paper, it is proved that the radial pth mean body RpK(p 〉 0) is homothetic to the difference body DK when K is a simplex, Furthermore, the equality Rp(Rq) = Rq(Rp) is established when p 〉 0 and q 〉 0. It is also proved the Brunn-Minkowski inequality of radial pth mean body of simplex and uniqueness property. 相似文献
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Leadership style has always been a controversial topic in educational administration and management. Following the recommendation of the Education Commission to introduce school-based management (SBM) into Hong Kong schools in the early 1990s, discussions about the kind of leadership style that is appropriate for SBM schools have never ceased. The government holds a continuing belief that SBM schools work better if they are managed by “better” principals, and emphasises the value of transformational leadership. However, this paper articulates the limitations of that leadership style and argues for complementing it with educational leadership, which purports that principals have an obligation to learn with others about ways of promoting student learning. Secondly, the staff should also be encouraged and helped to carry out certain leadership functions. These arguments are supported by references to the most relevant literature. The discussion is useful to school principals, leaders, and teachers by offering them a better understanding of how to facilitate the implementation of SBM. 相似文献