共查询到20条相似文献，搜索用时 328 毫秒
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在现代教育教学中,计算机辅助教学是一项重要的应用,多媒体计算机应用于教学发挥了强有力的作用,它图文并茂,使教学过程变得生动活泼,提高了学生的感知水平和学习兴趣;它的图形演示功能,可以为教师提供形象表达工具,使许多抽象的数学问题变得具体、形象,提高了知识的可接受性;特别是它的仿真模拟功能可以使教学中一些难做或无法做的演示变得轻而易举.本文谨以三个实例阐述计算机辅助教学在数学教学中的特殊运用——数学“实验”.众所周知,数学主要是以准确的计算和严密的逻辑推理为显著特点,从来没听说过在数学课上做实验.事实上借用电脑以… 相似文献
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数学探究已作为一种新的数学学习方式写进了普通中学数学课程标准,"数学实验"出现在中学数学教学中,先后涌现了一批与中学数学实验相关的理论与实践研究的成果.然而,不少教师认为数学实验必须依赖于计算机,这使得数学实验受教学时间和教学设备限制难以在中学数学教学中得以实施.其实在充分重视发挥信息技术,特别是计算机技术和图形计算器的作用的同时,也可以开发一些不需要依赖高级计算工具的数学实验项目(如折纸中的数学问题),让学生在一定的数学教学目标指导下,对具有一定的数学意义的实物、模型以及数学题目进行制作、演示、观察、猜想、验证、求解,以获得感性认识和数学信息,在实验中探索和发现数学规律,体验学数学、做数学、用数学的过程,激发数学学习的积极性. 相似文献
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杨延林 《现代教育管理与教学》2007,(2):65-66
在数学CAI课中，教师如何教学，学生如何认知，都需要通过实验才能回答。因此需要计算机技术与数学教学相结合，用计算机进行课堂演示、小组合作学习以及复习、作业。 相似文献
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如何利用计算机有效地支持学生对数学知识的自主建构一直是信息技术与数学课程整合所关注的核心问题.本研究以小学数学为例,从计算机作为小学生数学认知工具的角度,建立了计算机支持小学数学知识建构的研究框架.在此基础上,通过开展全国范围内的教学试验,应用质性资料分析法和基于设计的研究方法对计算机作为演示工具、操作工具和创作工具支持小学数学概念、数学规则和数学思想方法三类知识建构进行研究,并获得了"对比策略""多感观参与策略"以及"支架策略"等计算机支持小学数学知识建构的应用策略. 相似文献
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实验与教学相结合改革高等数学教育模式 总被引：3，自引：1，他引：2
传统高等数学教育教学模式具有抑制学生右脑开发、忽视学生思维品质、阻碍创新能力发展等弊端.数学实验教学可以变"满堂灌"式教学为"研讨班"式教学.数学实验与高等数学教学相结合的具体模式有:安排与课程内容相应的课堂演示实验;运用计算机多媒体辅助数学实验教学;结合阶段性学习内容来安排学生的动手实验课. 相似文献
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数学实验手册,是结合数学课本,从中提炼出适合做数学实验的内容,然后把每项实验内容编辑为一个实验主题,每个主题都详细地说明了实验的目的、需要的工具、实验的流程、实验提示的一种学习手册.本文说明教师如何通过实验手册的解读与教学应用提高学生的学习水平. 相似文献
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肖兆武 《襄樊职业技术学院学报》2007,6(6):82-84
数学软件Mathematica具有强大计算功能、作图功能和较好编程环境,可以作为高职数学教学的演示工具、计算工具、认知工具和应用工具,为高职数学学习提供一个平台,成为辅助教学的重要手段。 相似文献
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罗艳萍 《读与写:教育教学刊》2008,5(6)
The communication of people partially is the communication of cultures. Culture has a direct effect on international commercial activities in all aspects. Different conceptions about time, space, equality, law and the like, lead people to deal with things in different ways. So to know cultures of the counterpart is to facil-itate our enterprises so as to have a smooth and successful communication in commercial activity. 相似文献
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邱崇丙 《唐山师范学院学报》2014,(1):21-23
汉字的六书,《说文》对“转注”一类,语焉不详。后世学者提及转注,也仅限于许慎所举出的例字。《汉字例说》一文,作者从转注的角度综合考虑,对部分现代常用字作了分析,跟传统的解释有所不同。希望能抛砖引玉,互相切磋,以推进学术研究。 相似文献
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Richard Denner 《海外英语》2007,(4):14-15
Rosco and I wait for the fishermen to return.I sit at a wooden bench near the store at Mt.Baker Resort and watch the clouds change shape. Rosco has my belt around his neck and an eight foot tow chain hooked to a tree. Dogs must be on a leash. Ducks and rabbits are loose. 相似文献
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Given a graph G,a subgraph C is called a clique of G if C is a complete subgraph of G maximal under inclusion and |C|≥2. A clique-transversal set S of G is a set of vertices of G such that S meets all cliques of G. The clique-transversal number, denoted as TC (G), is the minimum cardinality of a clique-transversal set in G. The clique-graph of G, denoted as K (G), is the graph obtained by taking the cliques of G as vertices, and two vertices are adjacent if and only if the corresponding cliques in G have nonempty intersection. Let F be a class of graphs G such that F={G|K(G) is a tree}. In this paper the graphs in F having independent clique-transversal sets are shown and thus TC (G)/|G|≤1/2 for all G ∈ F. 相似文献
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《海外英语》2007,(5):10-11
Many college freshmen arrive woefully unprepared to do college work, and as disadvantaged populations continue to grow, the share of the American work force that has made it through college is expected to plummet. Many experts blame that educational failure not just on high schools but also on colleges. School & College, a special report by The Chronicle, looks at efforts to fix the system. What reforms would better prepare students for college? What should schools and colleges be doing differently? How should state and federal officials help? 相似文献
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陈美曦 《山东教育学院学报》2008,23(2):103-107
Different nations have different social cultures, and the social culture of every nation is developing with the development of the nation, language is greatly influenced by social culture, which enables language to possess national and historical characteristics. Word is the smallest, independent, meaningful linguistic unit of language. It can well reflect the national and historical characteristics. From synchronic aspect, the social and cultural influence on word meaning is mainly embodied in conceptual and associative meanings of word. The incorrespondence of word meaning is a phenomenon that exists in both conceptual and associative meanings of word among different languages. From diachronic aspect, the development of social culture causes some changes of word meaning to some extent. Therefore, social culture plays a key role in vocabulary learning and mastery of a language. 相似文献
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Rachel Zupek 《海外英语》2007,(11):40-41
我们绝大部分人都同意一件事情——我们喜欢金钱。但是你对金钱的喜欢之情足够到让你创立一份事业么?.财富通常被人忽视,主要在于人们不能真正了 相似文献
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YANGShiguo 《重庆大学学报(英文版)》2004,3(1):86-88
The problem on the geometrc inequalities involving an n-dimensional simplex and its inscribed simplex is studied. Aninequality is established, which reveals that the difference between the squared circumradius of the n-dimensional simplex andthe squared distance between its circumcenter and barycenter times the squared circumradius of its inscribed simplex is not lessthan the 2(n-1)th power of n times its squared inradius, and is equal to when the simplex is regular and its inscribed siplex is atangent point one. Deduction from this inequality reaches a generalization of n-dimensional Euler inequality indicating that thecircumradius of the simplex is not less than the n-fold inradius. Another inequality is derived to present the relationship betweenthe circumradius of the n-dimensional simplex and the circumradius and inradius of its pedal simplex. 相似文献