The effects of metacognitive instruction on solving mathematical authentic tasks

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.     

Teaching abstract vocabulary with the keyword method: effects on recall and comprehension

Twenty-five adolescents with learning disabilities were randomly assigned to either a keyword mnemonic condition or an experimenter-directed rehearsal condition and were individually taught 16 difficult vocabulary words, including 8 concrete and 8 abstract words. After an instructional period, students were given a test of literal recall as well as a comprehension test of their ability to apply newly acquired vocabulary words in a different context. Results indicated that mnemonically trained students outperformed control students on both abstract and concrete words, and on recall tests as well as on comprehension tests. Implications for vocabulary instruction as well as theories of learning disabilities are discussed.     

The effect of metacomprehension judgment task on comprehension monitoring and metacognitive accuracy

The authors investigated differences in the processes underlying two types of metacomprehension judgments: judgments of difficulty and predictions of performance (JOD vs. POP). An experiment was conducted to assess whether these two types of judgments aligned with different types of processing cues, and whether their accuracy correlated with different factors such as sensitivity to processing ease and reading ability. Participants (n?=?72) read an extended text about brain structure and after each sentence made either a JOD or POP. Results suggested that JODs and POPs were made based on different sets of cues because different factors correlated with the accuracy of metacomprehension judgments. JOD accuracy correlated with sensitivity to processing ease and POP accuracy most strongly correlated with reading ability. Engaging in different metacomprehension judgments during reading may alter the information sources to which a reader attends and which factors influence metacognitive accuracy.     

Using strategy instruction and confidence judgments to improve metacognitive monitoring

Current models of self-regulated learning emphasize the pervasive need for metacognitive monitoring skills at all phases of the learning process (Winne and Hadwin in Studying as self-regulated learning. In D. J. Hacker, J. Dunlosky, & A. C. Graesser (Eds.), Metacognition in educational theory and practice (pp. 227–304). Mahwah, NJ: Erlbaum, 1998). In this investigation, we examined the impact of teaching 5th grade students how to self-monitor their comprehension and make confidence judgments. One treatment class (N = 21) engaged in process-oriented comprehension monitoring training while the other (N = 24) engaged in both comprehension monitoring training and response-oriented monitoring accuracy training. Findings revealed that students in both treatment classes improved their calibration accuracy and showed higher confidence on test performance than students in two comparison classes (N = 47, N = 26) after 2 weeks of instruction. However, students in the monitoring accuracy training class also showed significant gains in overconfidence in comparison to those in the other three classes. Implications for integrating comprehension-monitoring training at the elementary school level are discussed.

A conceptual analysis of five measures of metacognitive monitoring

This paper describes five indices of metacognitive monitoring referred to as absolute accuracy, relative accuracy, bias, scatter, and discrimination. I provide definitions, formulae, and a discussion of the underlying construct that each of the five types of scores measures. I discuss the type of information provided by each measure and compare situations in which each measure is most appropriate. Recommendations are made for best measurement practice, as well as directions for future research. Recommendations focus on providing an operational definition of the construct being measured, selecting the most appropriate outcome measure, and using multiple measures whenever possible to triangulate findings.     

Effects of metacognitive and elaborative activity on cooperative learning and transfer

The effects of instructing pairs of students to engage in metacognitive activities (error correcting and key idea detection), elaborative activities (use of imagery, analogies, etc.), or neither during cooperative learning were examined for both initial cooperative learning and transfer to an individual learning task. The results suggest that metacognitive activity facilitates cooperative learning and elaborative activity facilitates transfer to individual learning. These findings have strong implications for the tailoring of cooperative learning strategies to instructional goals.     

The effects of recognition and recall study tasks with feedback in a computer-based vocabulary lesson

Should computer-based study tasks use multiple-choice or constructed-response question format? It was hypothesized that a constructucted-response study task (CR) with feedback would be superior to multiple-choice study tasks that allowed either single or multiple tries (STF and MTF). Two additional recognition study task treatments were included that required an overt constructed response after feedback (STF+OR and MTF+OR) in order to control for possible confounding caused by response form mismatch between the recognition study task and recall posttest. Graduate students (N=133) were randomly assigned to one of the five computer-delivered treatments. Relative to STF, posttest effect sizes were: STF 相似文献   

小学高年级儿童元认知发展特点及干预

以自编修订的《儿童元认知问卷》,对420名儿童（其中学习不良儿童96人）进行测试,结果发现：该阶段非学习不良儿童元认知发展上六年级显著高于四、五年级,不存在性别差异;学习不良儿童元认知发展不存在年级差异,他们在元认知整体水平以及六个维度上均显著落后于一般儿童和成绩优秀儿童;此外,以小学四年级学生为被试,考察了开展元认知训练的意义。研究发现,元认知训练可以较好地促进该阶段儿童元认知水平的提高,元认知训练对学生学业成就有着积极影响。     

协作任务对习得英语时态的施教影响

互动假说、合作性对话理论及语言相关片段等理论或概念均对协作任务在二语课堂中的使用提供了理论支持。检验语言相关片段施教影响的实验大多也证明了协作任务的积极作用,但此类实验大多采用订制测试作为后测工具,导致了测试题目的不可比性。本文采用了统一的后测工具,对比了协作任务和个人任务对英语时态的施教影响并检验了语言相关片段能否促进目标形式的习得。研究结果显示两组在课堂任务中的表现并无显著差异,但协作组的即时、延时后测成绩均显著优于个人组。协作任务与语言相关片段的确有助于目标形式的习得。     

关于加强高校督查工作的若干思考

如何做好新时期高校的督查工作,是摆在高校管理者面前的一个重要课题。文章从健全督查工作体系、强化和规范督查措施等方面提出了加强高校督查工作的有效办法,同时强调突出重点、强化权威、增强时效以提高高校督查工作的水平,促进工作的落实。     

Effects of perceptual training on the salience of information in a recall problem

Kindergarten children were given a salience-assessment task to determine each child's salience hierarchy for the dimensions of form, color, and position. The children were then assigned to either a control condition or one of 3 conditions providing different types of perceptual training with the child's least salient dimension. In a subsequent location recall task, children in all 3 training groups made significantly fewer errors recalling values of their least salient dimension than children in the control group. The results indicated that perceptual exposure alone was sufficient to increase the perceptual salience of the least salient dimension and its subsequent conceptual evaluation.     

基于AJAX的内文关键字广告系统设计与实现

结合AJAX技术的异步交互、局部更新等特点,设计了一种新型的内文关键字广告系统．实现了针对多种潜在客户的定向广告和多种广告样式,对于广告主和用户都将产生积极的作用．     

The influence of self-efficacy and metacognitive prompting on math problem-solving efficiency

A regression design was used to test the unique and interactive effects of self-efficacy beliefs and metacognitive prompting on solving mental multiplication problems while controlling for mathematical background knowledge and problem complexity. Problem-solving accuracy, response time, and efficiency (i.e. the ratio of problems solved correctly to time) were measured. Students completed a mathematical background inventory and then assessed their self-efficacy for mental multiplication accuracy. Before solving a series of multiplication problems, participants were randomly assigned to either a prompting or control group. We tested the motivational efficiency hypothesis, which predicted that motivational beliefs, such as self-efficacy and attributions to metacognitive strategy use are related to more efficient problem solving. Findings suggested that self-efficacy and metacognitive prompting increased problem-solving performance and efficiency separately through activation of reflection and strategy knowledge. Educational implications and future research are suggested.     

国内外二语写作元认知研究述评--元认知与二语写作教学系列研究之二

文章分析总结了近年来国内外二语写作元认知研究的特点及涉及的方面，归纳了学者们的研究成果及存在的不足，并提出了有待进一步讨论的问题。     

Effects of sorting on subsequent recall of unrelated items: a developmental study.

Second graders, fifth graders, and adults participated in 2 experiments designed to study the effects of sorting on subsequent recall of unrelated words. 1 group sorted the items freely, while a second group was constrained to learn the sorting schemes generated by free subjects. In the first experiment, subjects sorted until they reached a criterion of organizational stability. In Experiment 2, sorting was terminated prior to reaching a stable criterion. Recall and output clustering were reduced in Experiment 2, relative to Experiment 1, because of organizational instability. No meaningful differences were found in either experiment in the sorting schemes generated by free subjects in the 3 age groups, nor was there an effect of age of yoking partner on performance of constrained subjects. This result differed from previous research, and it was concluded that the sorting technique diminished differences in organizational behavior usually found between older and younger subjects.     

Selecting learning tasks: Effects of adaptation and shared control on learning efficiency and task involvement

Complex skill acquisition by performing authentic learning tasks is constrained by limited working memory capacity [Baddeley, A. D. (1992). Working memory. Science, 255, 556–559]. To prevent cognitive overload, task difficulty and support of each newly selected learning task can be adapted to the learner’s competence level and perceived task load, either by some external agent, the learner herself, or both. Health sciences students (N = 55) participated in a study using a 2 × 2 factorial design with the factors adaptation (present or absent) and control over task-selection (program control or shared control). As hypothesized, adaptation led to more efficient learning; that is, higher learning outcomes combined with less effort invested in performing the learning tasks. Shared control over task-selection led to higher task involvement, that is, higher learning outcomes combined with more effort directly invested in learning. Adaptation also produced greater task involvement.     

浅谈英文电影片名分析及其翻译

电影片名是对一部电影核心思想的很关键的影射,它的语言与其他的种种都有着极大的不同,以它的独特,再加上其中包含着多元化的民族文化,使其意义更加鲜明。就算是只有英汉两种语言,也会因为其各种各样的习惯以及中国文化与英国和美国的文化差异也是会附上不一样的意思,就像对一本书名字的翻译,电影片名字也会表现出不同文化的碰撞。同时,电影片名的翻译从不同的角度来考虑的话,它不仅仅是语言层面的,也是文化层面上的。本文首先浅析了英文电影片名的特点,然后阐述了英文电影片名的翻译原则,最后总结了英文电影片名翻译时的方法策略。     

Cognitive and metacognitive determinants of eyewitness memory accuracy over time

Metacognition and Learning - In the present study, we investigated the accuracy of eyewitness accounts over time from a metacognitive perspective, in which post-retrieval monitoring and control...