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1.
《Learning and Instruction》2006,16(2):104-121
In two experiments we explored how learning from traditional molar worked-out examples—focusing on problem categories and their associated overall solution procedures—as well as from more efficient modular worked-out examples—where intrinsic cognitive load is reduced by breaking down complex solutions into smaller meaningful solution elements—can be further enhanced. Instructional explanations or self-explanation prompts were administered to increase germane cognitive load. However, both interventions were not effective for learning and prompting for self-explanations even impaired learning with modular examples. In the latter case, prompting might have forced learners to process redundant information, which they had already sufficiently understood.  相似文献   

2.
The research on worked examples has shown thatfor novices, studying worked examples is oftena more effective and efficient way of learningthan solving conventional problems. Thistheoretical paper argues that addingprocess-oriented information to worked examplescan further enhance transfer performance,especially for complex cognitive skills withmultiple possible solution paths.Process-oriented information refers to theprincipled (``why'') and strategic (``how'')information that experts use when solvingproblems. From a cognitive load perspective,studying the expert's ``why'' and ``how''information can be seen as constituting agermane cognitive load, which can fosterstudents' understanding of the principles of adomain and the rationale behind the selectedoperators, and their knowledge about howexperts select a strategy, respectively. Issueswith regard to the design, implementation, andassessment of effects of process-orientedworked examples are discussed, as well as thequestions they raise for future research.  相似文献   

3.
Monitoring accuracy, measured by judgements of learning (JOLs), has generally been found to be low to moderate, with students often displaying overconfidence, and JOLs of problem solving are no exception. Recently, primary school children’s overconfidence was shown to diminish when they practised problem solving after studying worked examples. The current study aimed to extend this research by investigating whether practising problem solving after worked example study would also improve JOL accuracy in secondary education. Adolescents of 14–15 years old (N = 143) were randomly assigned to one of five conditions that differed in timing of JOLs, whether practice problems were provided, and timing of the practice problems provided: (1) worked examples – JOL, (2) worked examples – delay – JOL, (3) worked examples – practice problems – JOL, (4) worked examples – practice problems – delay – JOL or (5) worked examples – delay – practice problems – JOLs. Results showed that practice problems improved absolute accuracy of JOLs as well as regulation accuracy. No differences in final test performance were found.  相似文献   

4.
文章回顾了样例学习研究的起源与发展,主要介绍了其理论依据——认知负荷理论,并分别围绕外在认知负荷、内在认知负荷以及相关认知负荷介绍了最新国内外样例学习的设计方法:材料的整合、子目标、不完整样例、错误样例、诱发自我解释问题、多种解题方法比较等,最后在现有研究成果上指出样例学习研究的发展趋势和有待进一步解决的问题。  相似文献   

5.
In order to facilitate the transition fromlearning from worked examples in earlier stagesof skill acquisition to problem solving inlater stages, it is effective to successivelyfade out worked solution steps – in comparisonto the traditional method of employingexample-problem pairs that is frequently usedin cognitive-load research. In the presentstudies, the learning processes and mechanismsthat occur when learning in a computer-basedlearning environment containing faded workedsolution steps were examined across twoexperiments. The first experiment showed thatthe position of the faded steps did notinfluence learning outcomes; instead,individuals learned most about those principlesthat were faded. This suggested that specificself-explanation activities are triggered byfaded steps. The second experiment investigatedthis hypothesis directly by collecting andanalyzing thinking-aloud protocols generated bythe learners during their interaction with thelearning environment. No effect on productivelearning events including self-explanationscould be found. It could, however, be shownthat fading is associated with fewerunproductive learning events and, thereby,lends itself to better learning outcomes.  相似文献   

6.
Example-based learning is a very effective and efficient instructional strategy for novices. It can be implemented using text-based worked examples that provide a written demonstration of how to perform a task, or (video) modelling examples in which an instructor (the ‘model’) provides a demonstration. The model-observer similarity (MOS) hypothesis predicts that the effectiveness of modelling examples partly depends on the degree to which learners perceive the models to be similar to them. It is an open question, however, whether perceived similarity with the person who created the example, would also affect learning from text-based worked examples. Therefore, two experiments were conducted to investigate whether MOS would also play a role in learning from worked examples. In Experiment 1 (N = 147), students were led to believe via pictures and a short story that the worked examples were created by a male or female peer student. Males showed higher performance and confidence, but no effects of MOS on learning were found. In Experiment 2 (N = 130), students were led to believe that a peer student or a teacher created the examples. Again, no effects of MOS were found. These findings suggest that the perceived origin of text-based worked examples is not important for learning.  相似文献   

7.
Inquiry learning can be facilitated by having students investigate the domain through a computer simulation and express their acquired understanding in a runnable computer model. This study investigated whether heuristic worked examples can further enhance students' inquiry behaviour, the quality of the models they create, and their domain knowledge. High-school students were offered a simulation of an electrical circuit and a modelling tool. Students in the experimental condition (n = 46) could consult heuristic worked examples that explained what activities were needed and how they should be performed. Students in the control condition (n = 36) did not receive this support. Cross-condition comparisons confirmed that heuristic worked examples improved students' inquiry behaviour and enhanced the quality of their models. However, few students created a model that reflected full understanding of the electrical circuit, and the expected between-group difference in posttest scores failed to appear. Based on these findings, improvements to the design of heuristic worked examples are proposed.  相似文献   

8.
Students’ Judgments of Learning (JOLs) are often inaccurate: students often overestimate their future test performance. Because of the consequences that JOL inaccuracy can have for regulating study activities, an important question is how JOL accuracy can be improved. When learning texts, JOL accuracy has been shown to improve through ‘generation strategies’, such as generating keywords, summaries, or concept maps. This study investigated whether JOL accuracy can also be improved by means of a generation strategy (i.e., completing blank steps in the examples) when learning to solve problems through worked example study. Secondary education students of 14–15 years old (cf. USA 9th grade) either studied worked examples or completed partially worked examples and gave JOLs. It was found that completion of worked examples resulted in underestimation of future test performance. It seems that completing partially worked-out examples made students less confident about future performance than studying fully worked examples. However, this did not lead to better regulation of study.  相似文献   

9.
Worked examples have been effective in enhancing learning outcomes, especially with novice learners. Most of this research has been conducted in laboratory settings. This study examined the impact of embedding elaborated worked example modeling in a computer simulation practice activity on learning achievement among 39 undergraduate students within a classroom environment. The students from one introductory forensic science course were randomly assigned to one of two groups that worked through computer-based simulations containing worked example modeling conditions presented in varied order. The computer software administered the modeled simulations, prior knowledge test, pretest, posttests, and a second domain test. Findings from this study suggest that embedded worked example modeling within practice simulations can be an effective method for transfer of learning with novice learners. This article describes the dissertation study completed by Debra K. Meier under the guidance of David W. Brooks at the University of Nebraska, Lincoln.  相似文献   

10.
This case study presents what distance learning is and how it can be used as an alternative delivery solution for training. Distance learning definitions, characteristics, and design qualities are discussed. Specific examples and characteristics of the SBC Center for Learning's distance learning use are provided and can be related with how other companies, such as Arthur Andersen, Eastman Kodak, Microsoft, Netscape, and the Rochester Institute of Technology are using distance learning as an instructional delivery solution. Finally, the future technologies and applications of distance learning at the SBC Center for Learning and in general are discussed.  相似文献   

11.
Prior research has shown that tutored problem solving with intelligent software tutors is an effective instructional method, and that worked examples are an effective complement to this kind of tutored problem solving. The work on the expertise reversal effect suggests that it is desirable to tailor the fading of worked examples to individual students’ growing expertise levels. One lab and one classroom experiment were conducted to investigate whether adaptively fading worked examples in a tutored problem-solving environment can lead to higher learning gains. Both studies compared a standard Cognitive Tutor with two example-enhanced versions, in which the fading of worked examples occurred either in a fixed manner or in a manner adaptive to individual students’ understanding of the examples. Both experiments provide evidence of improved learning results from adaptive fading over fixed fading over problem solving. We discuss how to further optimize the fading procedure matching each individual student’s changing knowledge level.  相似文献   

12.
The effectiveness and efficiency of individual versus collaborative learning was investigated as a function of instructional format among 140 high school students in the domain of biology. The instructional format either emphasized worked examples, which needed to be studied or the equivalent problems, which needed to be solved. Because problem solving imposes a higher cognitive load for novices than does studying worked examples it was hypothesized that learning by solving problems would lead to better learning outcomes (effectiveness) and be more efficient for collaborative learners, whereas learning by studying worked examples would lead to better learning outcomes and be more efficient for individual learners. The results supported these crossover interaction hypothesis. Consequences of the findings for the design of individual and collaborative learning environments are discussed.  相似文献   

13.
Abstract

Math and science textbook chapters invariably supply students with sets of problems to solve, but this widely used approach is not optimal for learning; instead, more effective learning can be achieved when many problems to solve are replaced with correct and incorrect worked examples for students to study and explain. In the present study, the worked example approach is implemented and rigorously tested in the natural context of a functioning course. In Experiment 1, a randomized controlled study in ethnically diverse Algebra classrooms demonstrates that embedded worked examples can improve student achievement. In Experiment 2, a larger randomized controlled study demonstrated that improvement in posttest scores as a result of the assignments varies based on students’ prior knowledge; students with low prior knowledge tend to improve more than higher knowledge peers.  相似文献   

14.
Cognitive load theory (CLT) is aimed at developing training material that efficiently makes use of the available cognitive processing capacity and stimulates the learner's ability to use acquired knowledge and skills in new situations. It is claimed that CLT-based training formats meet the cognitive abilities of elderly learners particularly well. That is, cognitive aging brings about several declines of working memory, which impede the acquisition of complex cognitive skills. By making an optimal use of the ‘remaining’ cognitive resources, learning can be enhanced. For that purpose, CLT provides a promising range of training formats that have proven their effectiveness relative to conventional formats in young adults. This article presents an experimental study (N=54) aimed at the efficiency of worked examples as a substitute for conventional practice problems in training both elderly and young adults. According to CLT, studying worked examples is a more efficient means of training complex skills than solving conventional problems. As predicted, the results show that — with respect to the elderly — the efficiency of studying worked examples is higher than the efficiency of solving conventional problems in that less training time and cognitive load leads to a comparable level of performance.  相似文献   

15.
According to cognitive load theory, using worked examples is an effective and efficient instructional strategy for initial cognitive skill acquisition for novice learners, as it reduces cognitive load and frees up cognitive resources to build task competence. Contrary to this, productive failure (as well as invention learning, desirable difficulties and other problem-solving-first) frameworks suggest that scaffolded problem-solving activities (a generation phase) preceding explicit instruction enhance learners’ performance. The reported experimental study investigated the effectiveness of different levels of instructional guidance provided to students during the learning phase preceding explicit instruction in standard solution procedures in enhancing students’ engagement and transfer problem-solving skills. Specifically, the study compared partially-guided or unguided attempts at generating problem solutions as opposed to comprehensive guidance, in the form of a worked example. Levels of experienced cognitive load and learner motivation were evaluated in addition to delayed post-test performance scores. There were no differences between the three groups on the transfer post-test outcomes, even though the condition with fully-guided worked examples prior to the explicit instruction expectedly reduced cognitive load relative to the conditions without such guidance. There were also differences between the conditions on some sub-dimensions of the motivation scale. In general, the findings indicate that similar overall outcomes (delayed transfer performance) could be achieved by different sequences of instructional tasks aimed at achieving different sets of specific goals.  相似文献   

16.
In educational environments, monitoring persons' progress over time may help teachers to evaluate the effectiveness of their teaching procedures. Electronic learning environments are increasingly being used as part of formal education and resulting datasets can be used to understand and to improve the environment. This study presents longitudinal models based on the item response theory (IRT) for measuring persons' ability within and between study sessions in data from web-based learning environments. Two empirical examples are used to illustrate the presented models. Results show that by incorporating time spent within- and between-study sessions into an IRT model; one is able to track changes in ability of a population of persons or for groups of persons at any time of the learning process.  相似文献   

17.
ABSTRACT

Emotions are present in all learning processes, including those in entrepreneurship education. In this paper, we investigate which kinds of emotions exist in entrepreneurship education at university and in which contexts they occur, and show how the concept of liminal spaces – spaces of transformation in which students encounter high degrees of uncertainty, while their potential for learning is maximised – can be used in order to understand the role of negative emotions for entrepreneurship education. Providing examples from courses on entrepreneurship for Engineering and Business Administration students at a German university, we are able to confirm findings of existing literature on the type and sources of emotions. Moreover, our findings suggest that reflection of students on emotional processes that involve the endurance of uncertainty contribute significantly to the achievement of learning outcomes and that – within the limits of existing learning cultures and guidelines for assessment – teachers can facilitate such processes.  相似文献   

18.
Higher education is facing a conundrum relevant to the field of educational development: expectations regarding entrance criteria and graduation attributes are changing simultaneously. Biggs' model of constructive alignment can be used to analyze the challenges presented by these shifts in expectation and help educational developers understand their pedagogical implications. In the present article, an expanded model is proposed in which entrance requirements are added to Biggs' original conceptualization. In so doing, the length of the “learning journey” – from entrance to outcomes – can be charted. When entrance requirements and graduate attributes change simultaneously, higher education must accommodate learning journeys of varying lengths and nature. Moving targets such as these can engender a sense of frustration, if not helplessness, for academic staff responsible for curricular and pedagogical enhancement. However, rather than responding with a sense of helplessness, the educational developer should see these shifts as a real opportunity to support the implementation of a broader range of student-centred teaching/learning activities. Recommendations related to educational development consultations are offered.  相似文献   

19.
‘'Learner control'’ refers to the proposal that learners will benefit if given more control over the pace or style of instruction they receive. It is often assumed that providing increased learner control will “accommodate”; individual differences. This article argues that such a view is naive. It is argued that research on learner control will benefit from (a) avoidance of reference to panacea, (b) basic work on a detailed taxonomy of the various forms learner control might take, and (c) a substantial review of related research which, while not labelled “learner control,”; has implications for the educational benefits that can be expected from giving learners control of certain aspects of instruction. Research examples are used to explicate these suggestions. It is concluded that no form of individualization of instruction, including learner control, has yet been shown to erase the relevance of prior individual differences to learning from instruction.  相似文献   

20.
Using group presentation classes as a control condition, in nine introductory psychology classes we examined the impact of high-structure versus low-structure cooperative learning on N = 259 student teachers' conceptual knowledge, on their self-perceived competence, and on their appraisals of task values. To vary the structure, we first created a lesson plan built upon core principles of cooperative learning, and then eliminated from this plan critical elements structuring students' shared learning. Two-level analyses revealed that students in the two cooperative conditions (a) did better on three knowledge tests administered throughout the course of this one-semester project, (b) developed a more favorable view of their subject-specific competence, and (c) appraised the utility and intrinsic value of task assignments more positively than did the control students. In each of the three knowledge tests, students in high-structure groups outperformed students in low-structure groups. These findings support the hypothesis that structuring procedures enhance the efficaciousness of cooperative learning methods in college classes.  相似文献   

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