数学复习课中对学生创新能力的培养

在数学复习课中,紧扣教材内容,积极引导学生由一道例题推广而得到一个一般性的结论,既巩固了学生所学过的课本知识,又训练了学生的创新思维、培养了学生的创新能力;进而对这一得到推广的问题从不同角度一题多解,拓宽了学生的视野,提高了学生知识的综合运用能力,同时也强化了学生求新、求异的创新意识,为进一步提高学生的创新能力奠定了基础.     

An Eight-Step Guide to Creating and Sustaining a Mentoring Program

Mentoring is an extremely valuable activity for both individuals and organizations. Mentoring within organizations can develop and integrate employees into their corporate culture. Mentoring outside the mentees’ work groups or through professional development organizations can give broader perspective and support, especially in times of transition. But mentoring programs require tremendous effort to start, organize, and maintain. Few last more than two years. This article provides a structured approach to starting and sustaining a successful program. The steps include understanding an organization’s particular needs, learning from small pilot programs, following up with mentoring pairs during a committed formal mentoring period, and evaluating results from each program’s cycle to learn and grow the program. Supplementary materials for this article are available online.     

合作学习法在英语教学中的应用

合作学习是学生提高自主学习能力的必经阶段和重要手段。本文从运用合作学习的理论依据、合作学习的实施、实施过程中出现的问题和解决途径以及在合作学习过程中对教师的要求等方面进行了分析和探讨。     

样例的外部表征对问题解决迁移的影响

外部表征在样例学习中发生着非常重要的影响。本研究考查了从样例学习到问题解决过渡的样例外部表征设计方式。进行重复测量设计的方差分析,实验结果表明:渐减提示法是动态的联结样例和问题解决的有效形式,符合认知技能获得的四阶段模型和建构主义学习观的基本要求;渐减提示法有助于促进学习者对样例问题进行高质量的自我解释和产生心理预期,是实现从样例学习到问题解决过渡的有效方法。     

高等数学解题中几种重要的转化方法

本文对高等数学解题方法作了有益的探讨,结合举例的方法对常用三种转化方法进行了分析和阐述。     

Solving Asset Pricing Models when the Price–Dividend Function Is Analytic

We present a new method for solving asset pricing models, which yields an analytic price–dividend function of one state variable. To illustrate our method we give a detailed analysis of Abel's asset pricing model. A function is analytic in an open interval if it can be represented as a convergent power series near every point of that interval. In addition to allowing us to solve for the exact equilibrium price–dividend function, the analyticity property also lets us assess the accuracy of any numerical solution procedure used in the asset pricing literature.     

Relationship management as antecedents to public communication behaviors: Examining empowerment and public health among Asian Americans

This study examined the effects of relationship management by community health organizations on the situational perceptions, and, in turn, on information behaviors about health issues among community members. Survey data with 222 Asian Americans indicated that trust and control mutuality played different but complementary roles on problem recognition, involvement recognition, and constraint recognition, which then differently impacted four information behaviors ranging from information attending, information forwarding, information sharing, and information seeking. This study proposed and tested a public-oriented model and contributed to two lines of research: examining public-centered consequences of relationship management and exploring antecedents to the formation of publics. It has practical implications on fostering relationships and empowering community members.     

Problem Formulation and Solution Mechanisms: A Behavioral Study of Humanitarian Transportation Planning

When dealing with urgent, ill‐defined problems, such as rapidly evolving emergency situations, operations managers have little time for problem formulation or solution. While the mechanisms by which humans formulate and solve problems have been described, mechanisms for rapid, concurrent formulating and solving are not well understood. This study investigates these mechanisms through a field study of transportation planning in a humanitarian response setting. The findings show that the problem is solved through greedy search and formulated through sensemaking, in which search enables updates to an evolving problem formulation, and the formulation directs and limits the search process. This study explores the implications of these findings for the development of better problem formulation processes and problem‐solving strategies for urgent and ill‐defined operations management problems.     

如何正视数形结合法

匈牙利著名数学家G.Polya曾经说过:数学教学就是解题教学,数学解题就是由条件指向结论的一系列思维过程.—些数学问题,单方面从条件或从结论去着手,往往不是头绪繁多就是运算冗繁,若能从一些算式的结构特点考虑,找出题目中蕴含的几何图形,数形结合,常常能取得事半功倍的效果.然而,正是因为我们过于迷信数形结合法,而使我们许多人陷入了对数形结合法认识的种种误区.     

运用数学思维模式提高解题能力

在数学教学中使学生形成数学思维模式,对发展学生思维能力和提高解题能力是至关重要的。本文通过举例说明变换模式、方程模式和交轨模式三种常用思维模式在教学中的应用,达到发展学生思维能力和提高学生数学解题能力的目的。