试论知识的基本属性

针对知识展开论述 ,分析与探讨在知识经济环境中我们对知识基本属性的认识。     

用不动点原理证明区间套定理

本文是用巴拿赫(Banach)不动点原理证明区间套定理,以体现不动点理论应用的灵活性和广泛性。     

小学阶段创造教育初探

创造教育已成为当前教育改革的主要潮流.小学阶段是实施创造教育的起始时期.但显然小学时期创造教育的重点不在创造技法,而在创新意识的培养上.为此,在小学阶段,教师必须(1)首先做出表率;(2)在班级中创设自由安全的气氛;(3)组织多种多样的创造实践活动.     

Cultural capital and habitus in context: the importance of high school college-going culture

While an extensive body of research has examined the role of cultural capital in reproducing social class inequality in educational outcomes, the role of habitus and school context has received less attention in quantitative studies. We attend to this gap in the literature by considering the relationship between cultural capital, habitus, and the transition into higher education across high schools with low and high college-going cultures in the United States. Findings indicate that the relationship between cultural capital and transition into higher education is context specific and manifested only in schools with a high college-going culture. In addition, students from less advantaged family backgrounds benefit more from cultural capital than their more advantaged counterparts, but this is the case primarily in schools with a high college-going culture. Habitus, however, is related to the transition into higher education regardless of the high school context and benefits all students equally.     

同分布-混合序列的最大值不等式及其应用

建立同分布-混合序列的最大值不等式,并推导出随机变量supn≥1|Sn|/n的一阶矩及P(P≥1)阶矩的分别存在有限的充要条件。     

网络通信中的基本安全技术

简要介绍了网络安全的基本概念,详细分析了RSA,DES,数据签名,报文鉴别码,密钥交换和管理等数据安全技术.     

论城镇化进程中的农村学校布局问题

农村城镇化是国家现代化的重要趋势,建设新农村是农村发展的终极目标。但城镇化和城乡一体化程度高的地区与城镇化和城乡一体化程度低的地区的农村学校布局,就地城镇化的农村与迁移城镇化的农村的学校布局应该有不同的方式和路径。新农村建设的学校布局必须与地区经济社会发展和城镇化、城乡一体化程度相协调,使高效益和高质量与教育公平相结合,通过提高乡村教师质量、收入和教学水平提高农村教育教学质量。     

IRT下题量与被试量对参数估计模拟返真性能的影响

在项目反应理论下的题库建设时,进行纸笔测验测试时需要多少被试量、题量,试题的参数估计能够达到较为精确估计?本文使用蒙特卡洛模拟方法模拟测验情境,对此问题进行探讨。分析题量的变化和被试量的变化对a、b参数估计的模拟返真性能的影响。1)从被试量角度来看,在两级、多级记分试题模拟测验情境下,随着被试量逐渐增大,项目参数估计值模拟返真指标均方误差逐渐减小。2)从题量角度来看,在两级记分试题模拟情境下,均方误差曲线在题量为25题左右时有一个拐点,即当题量小于25题时,随着题量增加时RMSE减小幅度较大,而当题量大于25题时,这时再增加题量,RMSE减小幅度很小。在多级记分试题模拟情境下,均方误差曲线在题量为15题左右时有一个拐点,即当题量小于15题时,随着题量增加, RMSE逐渐减小,当题量大于15题时,随着题量增加,RMSE逐渐增大。     

论体育教学改革中的健康教育

体育改革对健康教育的教学目标、教学内容、教学方法提出了新的要求。体育教师应加强体育与健康课理论知识的教学，探索符合体育教学实际的教学方法。     

Correction to: The Role of Family Support in Facilitating Academic Success of Low-Income Students

Research in Higher Education - The original version of this article unfortunately contained a mistake in the acknowledgement section. Some of the vital information is missing in the published...