应用题结构分析训练对提高小学生解题能力的实验研究

实验以小学四年级学生为被试,采用完全随机化等设计。实验组采用应用题结构分析训练教学模式,控制组在同等时间内,采用常规教学模式作相同的习题练习。     

文章结构分析训练对阅读理解水平影响的实验研究

本研究探讨文章结构分析训练对阅读理解水平的影响,实验发现：（１）在文章结构分析中渗透精加工组织策略训练有助于提高学生阅读理解能力,差生进步更大;（２）训练总体上能提高学生对文章结构的敏感性和对文章信息的保持与回忆;（３）初一学生阅读水平的差异未反映到其对文章结构的敏感性和文章信息的回忆保持上。     

文章结构分析训练对阅读理解水平的实验研究

本研究探讨文章结构分析训练对阅读理解水平的影响,实验发现;（１）在文章结构分析中渗透精加工组织策略训练有助于提高学生阅读理解能力,差生进步更大;（２）训练总体上能提高学生对文章结构的敏感性和对文章信息的保持与回忆;（３）初一阅读水平的差异未反映到其对文章敏感性和文章结构和生和文章信息的回忆保持上。     

小学一年级数学新教材插图效果的眼动研究

采用2×3两因素混合实验设计,使用美国应用科学实验室（ASL）生产的EVM3200型眼动仪,对小学一年级学生阅读配有不同背景插图应用题的阅读理解指标和眼动指标进行考察。结果表明：无论应用题难易,学生对有背景插图的阅读理解优于对无背景插图的理解;复杂的插图背景有利于学生理解较难应用题;简单的插图背景有利于学生理解较容易应用题;眼动实验结果表明,小学一年级数学新教材插图效果较好     

解代数应用题的认知模式

本研究通过收集、分析被试解题时出声想的口语材料,探讨了初中学生解代数应用题中认知模式的作用和特点。在解代数应用题中,认知模式主要表现为识别应用题的类型。结果表明,被试能否识别类型在很大程度上决定着他能否迅速、准确地解答课题。要正确识别应用题类型,需要从课题的具体语义情境中分出确定的、一般的关系或结构。这种能力可以通过训练加以提高。训练所使用的材料应该具有多种变式。     

元认知训练对提高中学生解答数学应用题能力的实验研究

采用对比实验的方法,运用自编思维训练教程及元认知监控提问单对初二年级学生进行有关解答数学应用题的思维策略训练及其元认知训练。结果表明:(1)不同层次学生(优、中、差生)的思维策略训练效果显著,中、差生的效果尤为显著。(2)在思维策略训练的基础上再加上元认知训练,能够更有效地提高解答数学应用题思维训练的效果。     

代数图式相似性对样例迁移中原理通达的影响

应用题深层抽象结构有几个不同层次,被试对概念图式的相似性更敏感,而不是方程结构,概念图式的相似性更容易引起原理的通达。学生掌握了代数图式对解题有很大的促进作用,较少受表面内容等因素的影响。该研究对代数应用题教学模式的改革提供了理论支持。     

元认知训练对不同认知方式小学生应用题解题能力的影响

本研究以小学五年级292名学生为对象,考察了三种思维训练方式(元认知内隐训练、元认知外显训练和一般思维策略训练)对三种不同认知方式学生(场独立型、场依存型和中间型)数学应用题解题能力的影响。结果发现：(1)思维策略的元认知外显训练和元认知内隐训练比一般思维策略训练能蜓有效地提高场依存型、中间型和场独立型三类学生的应用题解题能力：(2)元认知外显训练和内隐训练对于场独立型和中间型学生同等重要。但元认知外显训练更有助于场依存型学生应用题解题能力的提高。成为该类学生的优势圳练方式;(3)在小学五年级．场独立型学生的应用题解题能力明显优于场依存型学生的应用题解题能力。     

题材个体化和问题重述两策略的效果研究

探讨题材个体化和问题重述作为两种解题策略在解决加、减法应用题中的有效性,采用了４种策略类型×３种数学能力水平×２种问题题材×２种题材情境与解题操作关系的四因素混合设计。结论如下：学生基本上能够独立进行题材个体化和问题重述;在本实验条件下,水平高的学生,运用不同策略没有差异;水平中等的学生运用双策略、水平低的学生运用双策略以及题材个体化策略均产生了积极效果;题材个体化策略对于解决不熟悉题材的应用题将产生积极效果,运用以上两策略解决问题情境与解题操作相矛盾的问题没有帮助。除了应用题陈述图式以外,本实验证明还存在着应用题结构图式;可把题材个体化和问题重述作为解题策略教给学生运用。     

小学生表征应用题的元认知分析

运用四种不同形式的应用题对小学六年级学生进行了应用题表征的元认知监控测试,结果证明,优中差学生之间元认知监控能力有显着差异,加强元认知监控训练是提高学生理解和分析应用题能力的有效途径.     

留守儿童情绪和行为问题特征的潜在类别分析：基于个体为中心的研究视角

对2288个留守儿童样本用儿童长处与困难问卷（SDQ）进行施测,并对他们的情绪和行为问题特征进行探索性的潜在类别分析,发现留守儿童的情绪和行为问题存在明显的分组特征。统计指标支持了3个潜类别的模型,根据3个潜在类别在问卷各条目上的条件概率特征分别定义为：“适应困难组”,“行为冲动组”和“良好适应组”,3个潜在类别所占全体样本的比例分别为32%、41%和27%。进一步的分析发现：相比较良好适应组而言,适应困难组和行为冲动组有着显著的性别和年级水平效应,适应困难组和行为冲动组的男生所占比例更大;同时,这两个组的小学生所占的比例也更大。     

Time to completion of web-based physics problems with tutoring

We studied students performing a complex learning task, that of solving multipart physics problems with interactive tutoring on the web. We extracted the rate of completion and fraction completed as a function of time on task by retrospectively analyzing the log of student-tutor interactions. There was a spontaneous division of students into three groups, the central (and largest) group (about 65% of the students) being those who solved the problem in real time after multiple interactions with the tutorial program (primarily receiving feedback to submitted wrong answers and requesting hints). This group displayed a sigmoidal fraction-completed curve as a function of logarithmic time. The sigmoidal shape is qualitatively flatter for problems that do not include hints and wrong-answer responses. We argue that the group of students who respond quickly (about 10% of the students) is obtaining the answer from some outside source. The third group (about 25% of the students) represents those who interrupt their solution, presumably to work offline or to obtain outside help.     

自我反思对初中生解题策略的影响

本研究选取初一至初三年级学生为被试,采用实验法,用数学连加数问题为实验材料,就自我反思对解题策略的影响进行了研究。比较了有反思实验组学生(24人)和没有反思控制组学生(29人)解题策略的差异,结果发现:(1)有反思的学生比没有反思的学生更多使用高效策略;(2)从测试过程策略类型的变化看,反思促进初中生逐渐获得高效策略,放弃低效策略。     

学思维网络活动对小学生创造性的影响:认知风格的调节作用

以89名小学生为被试,采用实验组对照组前后测实验设计,考察学思维网络活动对培养小学生创造性思维和创造性倾向的影响,以及认知风格的调节作用。结果发现：（1）学思维网络活动能有效促进小学生创造性思维以及创造性倾向的想象力和好奇心的发展;（2）学思维课堂活动和学思维网络活动对于培养小学生的创造性思维和创造性倾向具有一致的效果;（3）认知风格在学思维网络活动和学思维课堂活动对小学生创造性思维的影响中起调节作用：对于场依存学生,学思维网络活动能更大程度地提高其流畅性和独创性的表现。     

THE EFFECTIVENESS OF CURRENTLY ENROLLED STUDENT PROCTORS IN AN UNDERGRADUATE SPECIAL EDUCATION COURSE1

Potential users of Keller's personalized college classroom method might find it impractical to provide student proctors from the ranks of those who had previously mastered the course material. An alternative is to let currently enrolled students proctor and tutor each other. Such a method imposes the burden of showing that its effectiveness is not a function of (1) student collaboration or (2) the effects of “practice” received by students who listen to the performance of others before their own performance. The present study compared students proctored by previously trained students (Control) with students who received proctoring from classmates (Experimental). Experimental group performance was superior to Control group performance. The effects of “practice” and collaboration were ruled out as determinants of the difference between groups. It is hypothesized that the superior performance of the Experimental students was related to their activities as proctors.     

EFFECTS OF PARENTAL INVOLVEMENT IN DEVELOPING COMPETENT READERS IN FIRST GRADE

Software that teaches users to sing in tune and in rhythm while providing real-time pitch tracking was used in a study of struggling middle school readers. The software, Carry-a-Tune (CAT) was originally developed to improve singing; however, since it involves a repeated reading format, we used it to determine its effect on comprehension and reading achievement. Twenty-four students in grades 7 and 8 utilized the software program for 30 minutes, three times a week for 9 weeks. A matched control group of 24 students had a different reading experience during the same time period. The mean pretest instructional reading level for both groups was fourth grade. The mean instructional level scores for the treatment group improved significantly (7 months during the 9-week study). The matched control group students did not experience gains. Sustainability data from assessment 4 months after the study's conclusion indicated treatment students gained another 6 months. This placed them solidly in mid-fifth grade for instructional reading level. The control students, again, evidenced no significant gains.     

DEGREE OF CONSTRUCTED-RESPONSE INTERACTION IN COMPUTER-BASED PROGRAMMED INSTRUCTION

This investigation evaluated the importance of frequent responding in computer-based programmed instruction. Instructional computer programs that taught the use of an authoring language were administered to 155 undergraduate college students. One group experienced frequent (dense) situations requiring them to supply key components of the subject taught. A second group experienced half as many response requirements, and a third “passive” group simply tapped any key to progress. To control for time in contact with presentations, individuals in a fourth group were yoked to the members of the high-density requirement group. Statistically significant differences on both posttest and application performances indicated that students who experienced the high density of overt response contingencies scored the best and the passive group score the worst. The yoked control revealed that time on task alone could not account for the superior performance of students in the high-density group. Results suggest that inclusion of a high rate of constructed-response contingencies within instructional computer programs increases performance.     

不同年级学生读课文时眼睛注视方式的研究

采用３２００型眼动记录仪,以小学三年级、小学五年级、初中一年级、高中一年级和大学各３０名视力正常的学生为被试,记录了他们在有一定阅读任务要求下的眼睛注视方式。结果发现：阅读速度随年级升高而加快,且小学五年级组和初中一年级组、高中一年级组和大学生组之间差异显著;在读课文的过程中,各年级学生使用两种类型的国视和四种注视课文的方式;回视次数随年级升高而减少,且句间回视次数显著多于句内回视次数;各年级学生读课文时以使用直接和往复注视方式为主,以使用问题和不规则方式为辅。     

应用认知理论来认识和解除大学生的情绪困扰

大学生是一个特殊的群体,一些大学生深受不良情绪的困扰而产生诸多心理问题。认知的冲突和失调是产生不良情绪的重要原因之一。认知理论在解除大学生情绪困扰的过程中有其独到的作用: (1)帮助大学生发现并改变不合理信念;(2)有助于大学生树立“换个思路”的生活法则;(3)帮助大学生学会合理运用情绪想象技术; (4)有助于大学生学会客观地评价自我。