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1.
Learning from Worked-Out Examples: The Effects of Example Variability and Elicited Self-Explanations
《Contemporary educational psychology》1998,23(1):90-108
It was investigated to what extent example variability and the elicitation of sophisticated self-explanations foster the acquisition of transferable knowledge by learning from worked-out examples. In addition, it was asked whether the effects of these factors are moderated by the learners' levels of prior topic knowledge. To this end, we had 56 apprentices from a bank learn calculation of compound interest and real interest. They were randomly assigned to the four conditions of a 2 × 2-factorial design (factor 1: uniform vs. multiple examples; factor 2: spontaneous vs. elicited self-explanations). The learning results were measured by a post-test comprising near-transfer problems and far-transfer problems. It was found that the acquisition of transferable knowledge can be supported by eliciting self-explanations. In the case of near transfer, especially learners with low levels of prior topic knowledge profited from the elicitation procedure. On the whole, the findings underline the “causal” relevance of the quality of self-explanations for knowledge acquisition by learning from worked-out examples. The assumption that multiple examples foster transfer performance, at least when sophisticated self-explanations are elicited, was not supported. 相似文献
2.
Four studies were conducted to examine how instantiation of abstract statements facilitates solutions to insight problems. The first two experiments explored the effects of external instantiation (adding a concrete example to the abstract source information) on transfer. Providing an example along with the abstract source statement fostered transfer of analogous solutions. Moreover, adding a complete concrete instantiation to an abstract statement produced greater transfer than adding only specific items to illustrate the abstract terms. The second two experiments examined the effects of internal instantiation (encouraging learners to generate their own concrete examples of the abstract information) on transfer. This factor, too, facilitated problem solving. Generating examples to instantiate the abstract statement yielded even better transfer than simply informing participants of the relationship between the abstract statements and the target problems. These findings suggest that both external and internal instantiation facilitate transfer by promoting mental processes associated with implementing the source analogs. 相似文献
3.
Alexander Renkl 《European Journal of Psychology of Education - EJPE》1999,14(4):477-488
Recent research has shown that learning from worked-out examples is of major importance for initial skill acquisition in well-structured domains such as mathematics. However, only those learners who actively process the presented examples profit noticeably from this learning mode. Specifically, the learning outcomes depend on how well the learners explain the solution steps presented in the examples to themselves (‘self-explanation effect”). In a series of studies on learning mathematics from examples, learners’ spontaneous self-explanations and instructional means used to encourage self-explanations were investigated. In this research, the following main findings were obtained. Most learners were rather passive with respect to their spontaneous self-explanations. Among the active and successful learners, two subgroups employing different self-explanation styles could be identified. With regard to the instructional means used to induce effective example processing, it turned out that to employ “learning by teaching” in order to stimulate explanation activities was of very limited use. Attempts to directly train for or elicit certain types of self-explanations were more successful. However, even in the latter case, self-explanations had inherent deficits (e.g., proneness to errors). Thus, we sought to design learning arrangements that try to integrate self-explanations with well-timed and well-adapted instructional explanations (e.g., from tutors) in order to enhance students’ problem-solving skills. 相似文献
4.
Learning from worked examples is an effective learning method in well-structured domains. Can its effectiveness be further enhanced when errors are included? This was tested by determining whether a combination of correct and incorrect solutions in worked examples enhances learning outcomes in comparison to correct solutions only, and whether a mixture of correct and incorrect solutions is more effective when the errors are highlighted. In addition, the effectiveness of fostering self-explanations was assessed. In Experiment 1, the participants learned to solve probability problems under six conditions that constituted a 2 × 3-factorial design (Factor 1: correct and incorrect solutions with highlighting the errors vs. correct and incorrect solutions without highlighting the errors vs. correct solutions only; Factor 2: prompting written self-explanations vs. no prompts). An aptitude-treatment interaction was found: providing correct and incorrect solutions fostered far transfer performance if learners had favourable prior knowledge; if learners had poor prior knowledge correct solutions only were more favourable. Experiment 2 replicated this interaction effect. Thus, a mixture of correct and incorrect solutions in worked examples enhanced learning outcomes only for “good” learners. In addition, Experiment 2 showed that confronting learners with incorrect solutions changed the quality of their self-explanations: on the one hand, new types of effective self-explanations could be observed, but on the other hand the amount of the very important principle-based self-explanations was substantially reduced. A possible measure to prevent this negative side effect of incorrect solutions is discussed. 相似文献
5.
Example-based learning often follows a design in which learners first receive instructional explanations that communicate new principles and concepts and second examples thereof. In this setting, using the knowledge components of the instructional explanations to explain the examples (i.e., generating principle-based self-explanations) is considered to be a highly important learning process. However, a potential suboptimality of this learning process is that it scarcely requires learners to organize the content of the instructional explanations into coherent mental representations. Thus, in two experiments we investigated whether prompting learners to organize the content of the instructional explanations before providing them with the examples (and self-explanation prompts) enhances the effectiveness of example-based learning. We consistently found that organization prompts fostered learning regardless of whether the learners also received self-explanation prompts. Hence, in example-based learning, learners should be prompted to not only generate principle-based self-explanations but also to organize the content of the instructional explanations. 相似文献
6.
Kotaro Komatsu 《Educational Studies in Mathematics》2017,96(2):129-144
In contrast to existing research that has typically addressed the process from example generation to proof construction, this study aims at enhancing empirical examination after proof construction leading to revision of statements and proofs in secondary school geometry. The term “empirical examination” refers to the use of examples or diagrams to investigate whether a statement is true or a proof is valid. Although empirical examination after proof construction is significant in school mathematics in terms of cultivating students’ critical thinking and achieving authentic mathematical practice, how this activity can be fostered remains unclear. This paper shows the strength of a particular kind of mathematical task, proof problems with diagrams, and teachers’ roles in implementing the tasks, by analysing two classroom-based interventions with students in the eighth and ninth grades. In the interventions, the tasks and the teachers’ actions successfully prompted the students to discover a case rejecting a proof and a case refuting a statement, modify the proof, properly restrict the domain of the statement by disclosing its hidden condition, and invent a more general statement that was true even for the refutation of the original statement. 相似文献
7.
Cognitive skills acquisition involves developing the ability to solve problems in knowledge-rich task domains, and is particularly important for any individual attempting to meet the challenges of our modern, knowledge-driven economy. This type of economy argues for reconceptualizing cognitive skills acquisition as a lifelong process. Research has shown that worked-out examples are the key to initial cognitive skill acquisition and, therefore, critical to lifelong learning. The extent to which learners' profit from the study of examples, however, depends on how well they explain the solutions of the examples to themselves. This paper discusses our own research on different types of computer-based learning environments that indirectly foster self-explanations by (a) fostering anticipative reasoning, (b) supporting self-explanations during the transition from example study to problem solving, and (c) supporting self-explanation activities with instructional explanations. It also discusses ways of leveraging new computer and video technologies to enhance these environments by representing problem situations and their concepts dynamically. The paper concludes by suggesting that these learning environments, if employed successfully, can encourage systematic, lifelong learning. 相似文献
8.
Peter Medway Corresponding author 《Changing English: An International Journal of English Teaching》2005,12(1):19-29
The possibility is considered that the intuitive judgments of experienced English teachers about what is and is not appropriate ‘English’ content embody knowledge, and indeed potential theory, that are worth studying and making explicit as a way of moving towards an adequate theory for English. As an example, a text by Isaiah Berlin is examined, which both enacts a quality important to English and makes a relevant statement. Before that, a curricular initiative, deriving not from professional knowledge but from inadequate doctrine that makes ‘literacy’ the overarching business of English, is found wanting. 相似文献
9.
Kay Bussey 《Child development》1992,63(1):129-137
Preschool ( M = 4.9 years), second- ( M = 7.8 years), and fifth- ( M = 11.0 years) grade children's definitions of, moral standards for, and internal evaluative reactions to both lies and truthful statements were investigated. The influence of 4 factors on these judgments was also examined: the falsity of the statement, the content of the statement, whether or not the statement was believed, and whether or not the statement resulted in punishment. Results revealed that while the older children identified almost all statements correctly, preschoolers correctly identified about 70% of lies and truthful statements. Lies were rated as worse than truthful statements by all age groups; however, only the second and fifth graders ascribed feelings of pride to story characters after truthfulness. Implications of these findings for children's moral development are discussed. 相似文献
10.
Assisting self-explanation prompts are more effective than open prompts when learning with multiple representations 总被引：1，自引：0，他引：1
Learning with multiple representations is usually employed in order to foster understanding. However, it also imposes high
demands on the learners and often does not lead to the expected results, especially because the learners do not integrate
the different representations. Thus, it is necessary to support the learners’ self-explanation activity, which concerns the
integration and understanding of multiple representations. In the present experiment, we employed multi-representational worked-out
examples and tested the effects of two types of self-explanation prompts as help procedures for integrating and understanding
multiple representations. The participants (N = 62) learned about probability theory under three conditions: (a) open self-explanation prompts, (b) self-explanation prompts
in an assistance-giving-assistance-withholding procedure (assisting self-explanation prompts), or (c) no prompts (control
group). Both types of self-explanation prompts fostered procedural knowledge. This effect was mediated by self-explanations
directed to domain principles. Conceptual knowledge was particularly fostered by assisting self-explanation prompts which
was mediated by self-explanations on the rationale of a principle. Thus, for enhancing high-quality self-explanations and
both procedural knowledge and conceptual understanding, we conclude that assisting self-explanation prompts should be provided.
We call this the assisting self-explanation prompt effect which refers to the elicitation of high-quality self-explanations and the acquisition of deep understanding. 相似文献
11.
Jya-Yi Wu Yu Erh-Tsung Chin Chia-Jung Lin 《International Journal of Science and Mathematics Education》2004,2(2):257-285
This research was designed to study Taiwanese junior high school students understanding about the validity of conditional statements. Distinguishing between validity and truth is a crucial topic in mathematical reasoning and argumentation but has been always neglected in the mathematics curriculum at junior high school level of schooling. The aims of the survey were (1) to find out the methods Taiwanese junior high school students used when conducting mathematical justification on conditional statements; (2) to examine whether the students could distinguish between a statement and its converse statement; (3) to analyse whether the correctness of a conditional statement influenced the students to conduct mathematical reasoning and argumentation. Approaching the three aims of the survey is expected to give some insights into the issue of whether the students could distinguish between the validity of conditional statements and the truth of assertions. Several thousand students from different schools which were randomly sampled from within six geographically diverse (regions of Taiwan) were administered a test on either algebra/number-pattern or geometry corresponding to their respective grades. The main results were (1) the methods the students used when conducting mathematical justifications on conditional statements were called producing (supporting- or counter-) example(s), analytical narrative, and analytical formal; (2) over a third of those students, who considered the given conditional statement to be valid or invalid, proposed supporting- or counter-example(s), respectively; (3) over half the students considered the statement and its converse to be the same; (4) students reasoning performance was influenced by their opinions of the correctness of the conditional statements. These results seem to lead to the conclusion that most of these students could not distinguish between the validity of conditional statements and the truth of assertions. 相似文献
12.
本研究以互文性为理论框架,运用语料库与定量统计方法,对比分析中美500强上市企业年报文本的互文性特征,试图发现年报互文性特征与企业绩效之间的相关性。研究发现:1)中美总裁致辞在文本特征层面存在差异,中文总裁致辞篇幅较短,少用被动结构和第一人称单复数代词;2)中美年报总裁致辞在互文性特征层面存在共性与差异,均使用直接引语,披露绩效信息存在显著差异,但披露前瞻性信息未见显著差异,两类年报存在语块重复,直接引语的数量与侧重点不同。本研究对商务话语研究、商务英语教学和企业传播具有一定启示。 相似文献
13.
I. Bloch 《Educational Studies in Mathematics》2003,52(1):3-28
In many countries, the first concepts of calculus (such as functions)are taught by looking at examples, noticing their properties and generalizing from them in some implicit ways. Students have no means to discuss the general truth of a statement, or to examine the validity of a theorem, relative to the mathematical field. This knowledge is nonetheless required by teachers at the university level. The question is, therefore, if it is possible to organize activities for beginning calculus students, which would nevertheless lead them to working on statements and validity of theorems. This paper presents a teaching approach related to the concept of function, which aimed at leading students working within a graphic milieu to producing, discussing and testing the validity of mathematical statements and theorems. The intention of the approach was to use the procedural aspect of the graphs to provide a favorable milieu for linking the intuitive and the formal knowledge(such as required at the university for establishing proofs). The approach was experimented with a group of students. After the experiment, the students indeed became able to think of functions as objects and to engage with questions of validity of mathematical statements.This revised version was published online in October 2005 with corrections to the Cover Date. 相似文献
14.
André Didierjean Evelyne Cauzinille-Marmèche 《European Journal of Psychology of Education - EJPE》1998,13(3):385-398
One of the “classical” ways of learning consists of studying examples of already solved problems. In two experiments, we analyzed the degree of abstraction of the knowledge used by ninth grade students to solve algebra problems after studying worked examples. The results showed that there are two processes underlying reasoning by analogy, one that uses abstract knowledge and another that involves case-based reasoning. Both experiments pointed out interindividual differences in the population under study: when given examples, some subjects seem to extract the structure of the solving process by comparing the worked examples, while others focus more on the specifics of each example. To these two processes correspond two levels of transfer: correctly solve problems that have the same structure as the examples, regardless of how similar they are, or be better at solving problems that resemble the examples the most. Experiment 2 used a dual-task paradigm to show that some subjects implement both processes, in which case the mental load is greater. This experiment also showed that both processes can lead to the long-term acquisition of the principles behind the examples. 相似文献
15.
Self‐viewing is one of the most anxiety provoking features of social skills training (SST), and a facet of training about which comparatively little is known. In general terms, the major purpose of this study was to make a contribution to the knowledge and understanding of the self‐viewing process. In specific terms, the aim was to map out empirically the type and range of self‐evaluative comments made by students following a period of self‐viewing on Closed Circuit Television. A content analysis schemata was devised to classify free‐ranging statements collected from the subjects by means of self‐evaluation reports. Results showed that students significantly increased the number of positive and decreased the number of negative and internal statements following SST. No differences emerged between males and females in self‐statement responses. 相似文献
16.
《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
17.
靳海燕 《辽宁师范大学学报(社会科学版)》2001,24(6):26-28
财务报告作为财务会计信息的主要载体，总是随着经济环境的变化而变化，随着用户有需要的改变而改变。建立适合信息使用需要的、灵活的财务报告模式、是适应未来财务报告发展的需要。未来财务报告的发展趋势是：财务报告内容的扰展性；财务报告手段多样性；财务报告编制的及时性和灵活性。未来财务报告发展必须具备的基础是：会计理论的深入研究，会计法律法规及制度的完善，信息技术的应用与发展，会计人员素质的提高。 相似文献
18.
知识经济对财务理论产生了深刻的影响,必然推动着会计报表的变革。会计报表附注是会计报表的组成要素之一,是知识经济下激变性最强的领域。会计报表附注的变革主要体现于引入知识管理的理念、重视核心竞争力的导向性作用、关注人才资本和无形资本、构建全方位的绩效评价体系等。我国财务界的会计报表附注变革仍存在着漫长之路,不仅需要借鉴西方财务界的实践经验,也要充分发挥我国财务人员的主观潜力。 相似文献
19.
使命陈述是对组织使命的文字陈述,在国外高等教育界普遍存在。文章探讨了我国大学使命陈述的价值意义与章程、校训、远景、战略目标之异同,并通过主题要素编码框架、样本分析,对29所省属地方师范大学予以考量,揭示了师范院校的使命陈述现状：目前多数大学并无专门的使命陈述表现形式,多隐含在学校概况介绍中且使命陈述并非千篇一律,非常注重时时更新陈述内容,不同高校的使命陈述有共性也有特性。存在的问题体现在陈述方式及要素涵盖等方面。 相似文献
20.
In general, a mission statement reflects the context in which a higher education institution operates. It’s also a direction setting statement indicating the direction required for effective strategic and operational decisions. This study examines how the highest ranked universities in Europe, Asia, Latin America, Africa, and North America compare in terms of their mission statements and how they communicate to their stakeholders and to the public about what their main purposes, values, goals, and objectives are. Having downloaded each university’s mission statement from the Internet, we then classified them into five main categories of Asian, African, European, Latin American, and North American universities and analyzed them separately using the text mining and analysis tools available in SAS Enterprise Miner, a powerful commercial business analytics program. Results show that although we found similar terms and themes in the mission statements across the five different regions, there is great variability in the mission statements with respect to how they communicate their core values, main purposes, and value propositions. 相似文献