共查询到20条相似文献,搜索用时 78 毫秒
1.
2.
中国“入世”后的政府职能转变 总被引:1,自引:0,他引:1
中国加入WTO 以后, 面临最大挑战的将是政府。政府要应对这些挑战, 适应WTO 规则的要求, 就必须转变职能, 树立现代公共管理的思想, 要少一些管理, 多一些服务; 少一些神秘感, 多一些透明度; 少一些随意性, 多一些守信用; 少一些滥用权力, 多一些承担责任; 切实提高公务员的素质, 保证政府职能的转变。 相似文献
3.
4.
5.
6.
7.
8.
9.
10.
现行初中物理教材(人教版)为我们提供了内容丰富的小资料,共有17篇。其内容有:一些介质中的声速,一些动物的发声和听觉的频率范围,人对不同声强的感觉,自然界的一些温度,几种物质的熔点和沸点,常见的电流、电压、电阻值和电功率,一些物体的质量,一些物质的密度,一些物体的速度,一些物质的比热容,一些燃料的热值等。一些教师在教学中,对新教材提供的这些小资料不够重视。其实,利用这些小资料,可以提高学生学习物理的兴趣,夯实学生的物理知识基础, 相似文献
11.
李士芳 《北京工业职业技术学院学报》2008,7(2):65-69
概率论是从数量侧面研究随机现象规律性的数学学科,它的理论和方法几乎渗透到自.然科学的各个领域,条件概率在概率论中占有相当的地位,根据积累的一些解题经验,通过对若干具有代表性的例题的分析和解答,介绍了解题的思路及解答各类典型题的具体规律,并提供了一些常用的解题技能、技巧和计算方法。 相似文献
12.
Mercy Kazima 《Educational Studies in Mathematics》2007,64(2):169-189
The paper discusses findings of a study that investigated Malawian students' meanings for some probability vocabulary. The study explores the meanings that, prior to instruction, students assign to some words that are commonly used in teaching probability. The aim is to have some insight into the meanings that students bring to the classroom. The sample for the study consisted of 154 students in their first year of secondary school education and whose first language was Chichewa. The paper demonstrates that many of the students' preconceived meanings for probability vocabulary were distant from established conventional probability meanings. In addition, there was a wide range of meanings associated with each of the words. An attempt is made to analyse the students' meanings and to explain their possible sources, some of which are rooted in the students' first language. The paper highlights the importance of having an awareness of students' preconceived meanings, and also stresses the importance of language in learning probability. 相似文献
13.
陶胜 《集美大学学报(教育科学版》2003,4(3):90-94
概率论课程是理工类学生的一门基础课,内容丰富、抽象。采用图示法论证了概率论中的几个概念和公式,使用概率树法求解事件发生的概率,运用计算机可视化技术显示一些典型的示意图,并对大数定律和中心极限定理进行了随机模拟。 相似文献
14.
Prior to large experimentations on the teaching of probability theory, it appeared useful to observe some students working for a fairly long time. This observation should make more precise the difficulties of an important aspect when solving probability problems: the modelling aspect. Does systematic use of simulation produce miracles as it is sometimes said? Are the students naturally sensitive to a frequentist approach of probability theory? This paper contains some results on these questions, for example we pointed out for some students an obstacle to the frequentist approach. The results permit to conceive how using simulation for teaching could contribute to an improvement of students' approach to probability. 相似文献
15.
16.
对概率论中几个重要的概念如随机事件、随机变易和概率密度等进行解读,并且对求解概率密度函数之原理和一个条件较弱的概率密度变换公式加以证明。 相似文献
17.
概率模型及其应用 总被引:2,自引:0,他引:2
孙胜利 《商丘职业技术学院学报》2006,5(5):6-8
用概率论的思想方法,构造恰当的概率模型,能够解决一些其它分支的数学问题,并能体现其思想方法的简捷性和独特性. 相似文献
18.
19.
Data analysis requires subtle probability reasoning to answer questions like What is the chance of event A occurring, given that event B was observed? This generic question arises in discussions of many intriguing scientific questions such as What is the probability that an adolescent weighs between 120 and 140 pounds given that they are of average height? and What is the probability of (monetary) inflation exceeding 4% and housing price index below 110? To address such problems, learning some applied, theoretical or cross‐disciplinary probability concepts is necessary. Teaching such courses can be improved by utilizing modern information technology resources. Students' understanding of multivariate distributions, conditional probabilities, correlation and causation can be significantly strengthened by employing interactive web‐based science educational resources. Independent of the type of a probability course (e.g. majors, minors or service probability course, rigorous measure‐theoretic, applied or statistics course) student motivation, learning experiences and knowledge retention may be enhanced by blending modern technological tools within the classical conceptual pedagogical models. We have designed, implemented and disseminated a portable open‐source web‐application for teaching multivariate distributions, marginal, joint and conditional probabilities using the special case of bivariate Normal distribution. A real adolescent height and weight dataset is used to demonstrate the classroom utilization of the new web‐application to address problems of parameter estimation, univariate and multivariate inference. 相似文献
20.