共查询到20条相似文献，搜索用时 62 毫秒
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王爱珍 《广东技术师范学院学报》2005,(4):96-98
数学理解障碍是数学学习中不容忽视的一种障碍．从数学认知、教育心理学等层面来讲，中学生的数学理解障碍有认知型障碍，表象型障碍，联系型障碍，语言型障碍；克服这些障碍相应的教学对策有：帮助学生生成正确的数学表象；利用实物、模型等，增强学生对知识的感性认识；利用多媒体进行辅助教学；注重数学交流；加强学生对数学知识的自主探究与实际应用等来加深理解。 相似文献
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数学认知结构是数学知识结构与学生心理结构相互作用的产物.构建数学认知结构是为了完善学生的数学知识体系,提高学生分析问题、解决问题的能力.数学教学策略主要应注重三个方面:熟悉原有的数学认知结构、设计数学问题或问题链、突出适合的数学思想方法. 相似文献
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王萍 《番禺职业技术学院学报》2005,4(3):34-36,51
知识的组织是影响认知结构形成的重要因素，因此，教师需要掌握合理的教学策略：把握知识归类的不同角度，使学生认知结构中的知识组织联系化；注重学科间知识的渗透，使学生认知结构中的知识组织综合化；指导学生学会反思整合，使学生认知结构中的知识组织条理化；重视整体性教学法的实施，使学生认知结构中的知识组织结构化。 相似文献
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丁宝蟠 《青岛职业技术学院学报》1997,(1)
本文结合数学学习探讨学生认知结构的特征──三个认知结构变量。一方面从理论上揭示了学习的认知心理，另一主面结合数学学习实践具体地分析了认知结构变量是如何参与新知识与学习者原有的认知结构相互作用的；进一步阐述了掌握数学认知结构的特征，而且对于数学学习的认知决策具有重要的指导作用。 相似文献
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陈亚丽 《荆门职业技术学院学报》2004,19(3):67-69
在不正确教学观指导下的教学很容易产生数学差生．坚持建构性教学观，引导学生建构良好的数学认知结构，对于防止产生数学差生和转化数学差生具有十分重要的意义．在数学教学中，首先要更新教师的教学观念；其次，要及时复习与新知识相关联的已学知识，并注重整体性和突出数学思想方法的教学． 相似文献
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本文较详细地分析了《数学分析》课程中的数学思想方法特点，指出注重数学方法的教学，有助于学生形成良好的数学认知结构，有利于发展学生的思维能力。 相似文献
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王双成 《青岛大学师范学院学报》1997,(1)
数学素质教育是数学教育发展过程中的一个阶段，主要通过三个方面来促进学生的全面发展。其一是数学知识的增长（数学知识结构）；其二是教学认识能力的增强（数学认知结构）；其三是怎样做人（人格塑造）。下面从这三个方面对数学素质教育进行初步的探讨。一、数学知识结构学生数学知识结构的建立是实现数学素质教育的基础，在建立数学知识结构的同时培养了能力、塑造了人格。学生教学知识结构主要指由教学符号、图形、关系、思想方法等构成的有机整体，它是数学操作的取材源泉。数学素质教育强调在学生数学知识量增长的同时更注重联系的增… 相似文献
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建构主义十分重视学生已有的知识经验、心理结构的作用，“新旧知识经验的冲突以及由此而引发的认知结构的重组”的学习观强调数学教学“要充分发挥学生学习的自主性”、“研究认知结构的变量，促进学生主动建构”、“强调打好数学基础和注重理解”。《数学新课程标准》的核心是“以人为本，以发展为本”。 相似文献
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建构良好的数学认知结构的教学策略 总被引：18，自引：9，他引：18
良好的数学认知结构的特征是：有足够多的观念；具备稳定而又灵活的产生式；具有层次分明的概念网络结构以及一定的问题策略的观念。建构良好的数学认知结构的数学策略包括：熟悉学生原有的数学认知结构；创设良好的问题情境；突出数学思想方法的教学；注意整体性教学。 相似文献
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学生认知结构的组建和优化应做到以下几点：注意揭示和反映数学的发生发展过，在此基础上重建一个更为完善的知识结构，改革传统教学模式，调动学生参与思维的积极性，促使由知识结构向认知结构的转化；加强策略化知识的教学，实现学生认知结构的优化。 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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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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《海外英语》2007,(4):36
There are numbers of crossroads on our long and unpredictable life journey where we totally have no idea about which direction to choose. No matter what our decision is, we should not turn back, but face the music and go ahead instead. I am this kind of girl who always does try without regretting, one example is how I dealt with my love. 相似文献
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Migration occurs behind a variety of reasons and has a great effect on the whole world. People may migrate in order to improve their economic situation, or in order to escape civil strife, persecution, and environmental disasters. The impact of migration is complex, bringing both benefits anddisadvantages. This paper briefly talks about the causes of migration, the allocation of benefits, and the ways in which individual countries and the international community deal with this important subject. 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
19.
Sister Carrie is one of the most controversial characters in American literature.Thought as a "fallen woman" firstly,she was defined as a "new woman" by some critics later. However, by digging into the motivaton behind the whole process of Carrie's "success", the relationship between Carrie and her creator (the author), the social conditions of then American, it can be found that Carrie has never been free-standing on her thought and she has never found her real-sdf even after becoming a famous actress. In a society dominated by mass consumerism Carrie is only an adherent of her own desires. She also is a representative of all those country girls flooded into cities, a symbol and a sacrifice of the urbanization of America in a time countryside was overcome by cities. 相似文献