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1.
罗中一 《成才之路》2021,(10):116-117
读题是学生对题目意思进行理解,只有做到正确读题,才能真正理解题意,进行高效解题.数学题目变化多样,十分考验学生的读题理解能力.学生运用勾画法和创建链接法,能够实现从基本了解题意到灵活运用所学的数学知识进行解题,提高解题准确率.  相似文献   

2.
This study describes the learning of researchers who engage in mathematics teacher education as an integral part of their practice. As teacher educators working with teachers on the subject of proportional reasoning, the authors reflected on teachers solutions to a standard problem and analyzed answers that would conventionally be considered incorrect. This exploration showed that some incorrect answers made sense, were based on problem situation analysis, and brought attention to the fact that conventional formal answers were given without much deliberation on their meaning in the situation. This insight prompted a second research phase in which teachers discussed and explained alternative solutions, and developed deeper analysis of problem situation in solutions that had been correct in the first place. The importance of making teachers aware of the nature of alternative solutions was further exhibited in a third research phase in which teachers evaluated childrens answers to the same problem. The pedagogical insight that emerged stressed the importance of making teachers aware of the tension between an almost automatic application of a mathematical model, and of analyzing problem situation during problem solving. In addition, the researchers developed better understanding of the mathematical challenge associated with the proportional reasoning problem, a stronger awareness of the role of sensitivity to their learners (the teachers), and of the role of reflection.  相似文献   

3.
    
Students at the junior high school (JHS) level often cannot use their knowledge of physics for explaining and predicting phenomena. We claim that this difficulty stems from the fact that explanations are multi‐step reasoning tasks, and students often lack the qualitative problem‐solving strategies needed to guide them. This article describes a new instructional approach for teaching mechanics at the JHS level that explicitly teaches such a strategy. The strategy involves easy to use visual representations and leads from characterizing the system in terms of interactions to the design of free‐body force diagrams. These diagrams are used for explaining and predicting phenomena based on Newton's laws. The findings show that 9th grade students who studied by the approach advanced significantly from pretests to post‐tests on items of the Force Concept Inventory—FCI and on other items examining specific basic and complex understanding performances. These items focused on the major learning goals of the program. In the post‐tests the JHS students performed on the FCI items better than advanced high‐school and college students. In addition, interviews conducted before, during, and after instruction indicated that the students had an improved ability to explain and predict phenomena using physics ideas and that they showed retention after 6 months. © 2010 Wiley Periodicals, Inc. J Res Sci Teach 47: 1094–1115, 2010  相似文献   

4.
数学理解性教学设计是将数学理解性教学由目前的理想状态转化为教学现实的最佳途径。基于问题解决的数学理解性教学设计包含分析、评价、设计、开发和实施五个基本要素,这些要素构成相互关联的循环系统。在整个系统设计中应以学生为中心、以问题为引导、依据数学理解性教学所基于的学与教的原理进行设计。  相似文献   

5.
阐述了中学数学中几种常用的解题思想:方程的思想、函数思想、转化思想、分类讨论思想、数形结合思想等.同时分析了几种常用的解题方法:换元法、消元法、参数法、递推法、构造法.  相似文献   

6.
利用自制的中学生物理问题解决能力测验试题,从力学问题、运动学问题、图像问题、实验问题、简答题方面,对138名高中生的物理问题解决能力进行了调查,发现学生解决物理问题时,在态度倾向、问题表征能力、识别和分析问题能力、运用数学解决物理问题能力、知识迁移能力、检查与反思能力方面存在各种问题,并分析了问题存在的原因。  相似文献   

7.
无论是词汇、语法还是口语,大学英语与中学英语在教学大纲中都有不同的要求,在听、说、读、写、译五项基本能力的要求方面也存在有不同之处。本文从大学英语教学与中学英语教学脱节原因分析、大学与中学英语教学比较、如何做好大学与中学英语教学的衔接三个方面对大学英语与中学英语教学的衔接问题做了一定的研究。  相似文献   

8.
许明明 《天津教育》2021,(11):142-143
提高学生的解题能力是初中数学教学的重点。初中数学习题灵活多变,解题方法多种多样,为促进学生解题能力更好地提升,教师会为学生讲解相关的解题思维。其中侧向思维是一种迂回思维,既能帮助学生更好地破题,又能简化解题步骤,提高解题效率,因此,教学中应结合具体例题,为学生讲解侧向思维的具体应用,给其以后的解题带来良好的指引。  相似文献   

9.
    
The present research investigated whether an illustration and/or a warning could help students to (a) build a situational model of the problem situation and (b) solve problematic word problems (P-items) that require realistic thinking more realistically. In 2 similar studies conducted in Turkey and Belgium, the authors presented 10- to 11-year-old children with several P-items. These problems were accompanied with an illustration that depicted the problem situation and/or a warning that alerted that some items may be nonstandard. Contrary to the authors’ expectation, findings from both studies showed that neither the illustration nor the warning, or even the combination of both manipulations, had a positive impact on the number of realistic reactions.  相似文献   

10.
在初中化学学习中,物质鉴别类的题目是考试中的热点与难点。提高学生解决这类题目的能力,对学生化学素养的培养有重要作用。文章从物质鉴别例题出发,为学生提出一些解题思路和技巧,以提升学生的解题速度,培养学生良好的化学推理思维。  相似文献   

11.
12.
中学生推理能力的培养   总被引:1,自引:0,他引:1  
不同年级的中学生的推理能力具有不同特点。良好的思维环境是中学生正确思维和发现问题的桥梁 ,因此在教学过程中 ,要创设有利于推理能力培养的思维环境。  相似文献   

13.
    
How might educators help young people respond to current and future challenges of a changing world? In this article, I describe how educators can design Legacy Projects to provide young people with opportunities to make positive and lasting differences in their lives, schools, communities, and beyond. The connection between legacy projects and the kinds of transformative leadership skills outlined in Sternberg’s (2017) Active Concerned Citizenship and Ethical Leadership (ACCEL) model is also discussed.  相似文献   

14.
    
《PRIMUS》2012,22(1):39-44
ABSTRACT

We give examples of group problems that excite and motivate students. We also present a method for employing these problems within an undergraduate mathematics class.  相似文献   

15.
The present study investigates the differential effects of cooperative-learning with or without metacognitive instruction on lower and higher achievers' solutions of mathematical authentic tasks. Participants were 91 seventh graders who studied in three classrooms. Data were analyzed by using qualitative and quantitative methods. Results indicated that students who were exposed to the metacognitive instruction within cooperative learning (COOP+META) significantly outperformed their counterparts who were exposed to cooperative learning with no metacognitive instruction (COOP). The positive effects of COOP+META were observed on both authentic and standard tasks. In addition, the findings show the positive effects of COOP+META method on lower and higher achievers. The practical implications of the study are discussed.This revised version was published online in September 2005 with corrections to the Cover Date.  相似文献   

16.
中小学数学情境与提出问题教学探析   总被引:12,自引:5,他引:12  
中小学“ 情境—问题” 数学教学研究是基于国际、国内数学教育改革大趋势而开展的一项前沿性、探索性与实证性的数学教学研究.它所提倡的课堂教学观有:(1)以人为本,以学生为中心;(2)关注学生的学习过程;(3)发展共性与突出个性.“ 情境—问题” 数学教学实验研究还应在以下 3 方面做出努力:(1)实验研究范围需进一步扩大;(2)将“ 情境—问题” 数学教学的基本理念向其它学科渗透;(3)进一步提升理论研究水平.  相似文献   

17.
初中化学课改在课程标准的研读、教学方式的转变、评价体系的改革等方面.各地做出了不少有益的尝试,取得了令人欣慰的成果,但是,目前的初中化学教学中仍存在着诸如观念陈旧老套、弱化实验教学、度的把握不准、束缚学生思维、讲练严重脱节、过于依赖媒体等问题,本文试图就这些问题提出解决问题的策略和方法。  相似文献   

18.
初中化学课改在课程标准的研读、教学方式的转变、评价体系的改革等方面,各地做出了不少有益的尝试,取得了令人欣慰的成果,但是,目前的初中化学教学中仍存在着诸如观念陈旧老套、弱化实验教学、度的把握不准、束缚学生思维、讲练严重脱节、过于依赖媒体等问题,本文试图就这些问题提出解决问题的策略和方法。  相似文献   

19.
不同的解题长度影响了学生对解题过程的理解,而相同长度的解题过程同样也会引起学生不同的倾向.这是由于图式的不同精致程度及在接受新的信息时图式结构的变化所造成的.  相似文献   

20.
解决良构问题与非良构问题的研究综述   总被引:4,自引:1,他引:4  
学校情境下的问题大部分是良构问题,而现实生活中面临的问题大多是非良构问题。解决良构问题的程序是激活图式表征问题,搜寻解决方案和执行解决方案。结构性知识与具体领域的知识是解决良构问题的主要成分。解决非良构问题的过程包括了解问题的陈述,确定问题是否存在,确定问题的本质,澄清问题产生的原因,识别与澄清不同的看法,生成与选择可能的解决方案,评估与实施解决方案。认知的调节、认知观和情感态度等非认知因素均是解决非良构问题的关键因素。总之,在问题本质、问题解决过程和问题解决成分三个方面,良构问题与非良构问题存在看较大的差异。  相似文献   

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