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1.
Teaching Scientific Analogies: a proposed model   总被引：1，自引：1，他引：0  
The purpose of this paper is to propose a model for teaching scientific analogies. This model is called: ‘The General Model of Analogy Teaching’ (GMAT). A theoretical framework is developed first for this model. The following points are covered in this framework: (1) definition of the analogy, (2) analogical learning, (3) variables related to the analogical learning, (4) evaluating the outcomes of analogical learning, and (5) limitations of using analogies in teaching. The General Model of Analogy Teaching proceeds in the following nine stages: (1) measure some of the students’ characteristics related to analogical learning in general, (2) assess the prior knowledge of the students about the ‘topic’ to be taught, (3) analyse the learning material of the ‘topic’ to be taught, (4) judge the appropriateness of the analogy to be used, (5) determine the characteristics of the analogy to be used, (6) select the strategy of teaching and the medium of presenting the analogy, (7) present the analogy to the students, (8) evaluate the outcomes of using the analogy in teaching, and (9) revise the stages of the model.  相似文献   

2.
Cognitive and metacognitive aspects in conceptual change by analogy   总被引：1，自引：0，他引：1  
This study is a qualitative investigation on the teaching-learning by analogy of complex curriculum concepts in natural and relevant environments, such as classrooms, to improve the ecological validity of the research itself. It aimed at exploring whether students' successful use of analogy in learning science was related a) to the level of their understanding of a specific analogy and b) to their metacognitive awareness of how the analogy was to be used and of the changes produced in their own conceptual structures. During the implementation of a biological curriculum unit, sixty 5th graders were engaged in understanding the ways in which the new concepts (concerning the human circulatory system) were similar to a familiar source (the mail delivery system) by detecting all the relations between the two systems and mapping the relevant information from the source to the target. Learners' preexisting mental models have been taken into account in order to examine their conceptual growth and change via the analogy. Qualitative data are presented for the analysis of elicited and spontaneous analogical inferences, based on structural and semantic similarities, as well as of the identification of where the analogy breaks down. Moreover, qualitative data also concern children's metacognitive awareness of the meaning and the purpose of the analogy, and their personal use of the analogy in changing initial conceptions. As hypothesized, results showed a high correlation between level of conceptual understanding of the new science topic, level of understanding of the analogy itself, and the effective use of the analogy in integrating the new information into the pre-existing conceptual structures. Some implications on the use of analogy for conceptual change are considered from an educational standpoint.  相似文献   

3.
Research on expertise suggests that a critical aspect of expert understanding is knowledge of the relations between domain principles and problem features. We investigated two instructional pathways hypothesized to facilitate students’ learning of these relations when studying worked examples. The first path is through self-explaining how worked examples instantiate domain principles and the second is through analogical comparison of worked examples. We compared both of these pathways to a third instructional path where students read worked examples and solved practice problems. Students in an introductory physics class were randomly assigned to one of three worked example conditions (reading, self-explanation, or analogy) when learning about rotational kinematics and then completed a set of problem solving and conceptual tests that measured near, intermediate, and far transfer. Students in the reading and self-explanation groups performed better than the analogy group on near transfer problems solved during the learning activities. However, this problem solving advantage was short lived as all three groups performed similarly on two intermediate transfer problems given at test. On the far transfer test, the self-explanation and analogy groups performed better than the reading group. These results are consistent with the idea that self-explanation and analogical comparison can facilitate conceptual learning without decrements to problem solving skills relative to a more traditional type of instruction in a classroom setting.  相似文献   

4.
Analogical reasoning is believed to be an efficient means of problem solving and construction of knowledge during the search for and the analysis of new mathematical objects. However, there is growing concern that despite everyday usage, learners are unable to transfer analogical reasoning to learning situations. This study aims at facilitating analogy use for conjecturing in discourse-rich mathematics classrooms. We reconceptualized one of the traditional perspectives on analogical reasoning, called classical analogy, as a more dynamic one by providing learners with the opportunity to choose a target object and its property. While shifting attention to particular aspects of mathematical activity, we observed and analyzed how students became aware of hidden relational similarities and utilized them while weakening others to make conjectures. The detailed analysis of the constructs and processes of several similarity-making and conjecturing activities supports the significance of reconceived classical analogy use in mathematics classrooms.  相似文献   

5.
A new approach to change misconceptions of students is to build on ideas which match their students' existing intuitive knowledge. This can be done by analogy. The use of an analogical relation between the known and the unknown can help students learn new information and discard or modify misconceptions. Previous studies have confirmed this result in such areas as mathematics. The present study examined the use of analogical instruction to overcome misconceptions about conservation of matter. Students who understood the concept of conservation of matter when iodine was evaporated were able to transfer their understanding to the evaporation of acetone. This indicates that teaching by analogy can be an effective tool in science. The author is now studying the relative effectiveness of conflict training and learning by analogy.  相似文献   

6.
This qualitative study aimed at exploring whether students’ successful use of analogy in learning curriculum complex science concepts was related: (a) to the level of their understanding of a specific analogy and (b) to their metacognitive awareness of how the analogy was to be used and of the changes produced in their own conceptual structures. In implementing a biological curriculum unit, students’ prior knowledge has been taken into account in order to examine its conceptual growth and change via a not completely introduced analogy to 15 fifth graders as they were engaged in understanding the ways in which the new concepts (on photosynthesis) were similar to a familiar source (making a cake). Qualitative data present the children's mapping processes in elaborating the analogy and their metacognitive awareness of the meaning and purpose of the analogy itself, and their personal use of the analogy in changing initial conceptions. As hypothesised, the results showed a high positive correlation among the level of conceptual understanding of the new science topic, the level of understanding of the analogy, and the level of effective use of the analogy in integrating the new information into the pre‐existing conceptual structures. Key implications on the use of analogy for conceptual change in the classroom are outlined.  相似文献   

7.
Summaries

English

Learning science is complex‐‐a student has at different times to acquire new information, reorganize existing knowledge and even discard cherished ideas. In addressing this issue, the analogy between individual learning and conceptual change in scientific disciplines has been fruitful in providing aspects of a suitableframework for analysing science learning. In this paper a model of learning as conceptual change is developed. It investigates the conditions under which an individual holding a set of conceptions of natural phenomena, when confronted by new experiences will either keep his or her conceptions substantially unaltered in the process of incorporating these experiences, or have to replace them because of their inadequacy. The model illuminates the importance of addressing an individual's existing conceptions. It also pinpoints the importance of an individual's metaphysical commitments in influencing scientific learning.  相似文献   

8.
In most work investigating factors influencing the success of analogies in instruction, an underlying assumption is that students have little or no knowledge of the target situation (the situation to be explained by analogy). It is interesting to ask what influences the success of analogies when students believe they understand the target situation. If this understanding is not normative, instruction must aim at conceptual change rather than simply conceptual growth. Through the analysis of four case studies of tutoring interviews (two of which achieved some noticeable conceptual change and two of which did not) we propose a preliminary list of factors important for success in overcoming misconceptions via analogical reasoning. First, there must be a usable anchoring conception. Second, the analogical connection between an anchoring example and the target situation may need to be developed explicitly through processes such as the use of intermediate, bridging analogies. Third, it may be necessary to engage the student in a process of analogical reasoning in an interactive teaching environment, rather than simply presenting the analogy in tetext or lecture. Finally, the result of this process may need to be more than analogical transfer of abstract relational structure. The analogies may need to be used to enrich the target situation, leading to the student's construction of a new explanatory model.  相似文献   

9.
类比推理是一种特殊的推理形式,也是个体抽象思维的一种主要形式。有些心理学家着重研究与类比推理有关的问题,以期可以找到发展类比推理能力的有效策略,以提高学生学习新知识、新技能等的效率。经过大量研究与调查数据显示,工作记忆的各个子成分与类比推理之间有着密切的联系,工作记忆直接影响着个体类比推理能力的发展。因此,文章主要探讨工作记忆与类比推理的含义,以及工作记忆对类比推理的影响,希望能够为相关研究者提供参考。  相似文献   

10.
Despite compelling evidence that analogy skills are available to beginning readers, few studies have actually explored the possibility of identifying individual differences in young children's analogy skills in early reading. The present study examined individual differences in children's use of orthographic and phonological relations between words as they learn to read. Specifically, the study addressed whether general analogical reasoning, short‐term memory and domain‐specific reading skills explain 5‐ to 6‐year‐olds' reading analogies (n=51). The findings revealed an orthographic analogy effect accompanied by high levels of phonological priming. Single‐word reading and use of visual analogies predicted young children's orthographic and phonological analogies in the regression analyses. However, different findings emerged from exploring profiles based on individual differences in reasoning skill. Indeed, when individual differences in composite scores of orthographic and phonological analogy were examined, group membership was predicted by word reading and early phonological knowledge, rather than general analogical reasoning skills. The findings highlight the usefulness of exploring individual differences in children's analogy development in the early stages of learning to read.  相似文献   

11.
学习是对现有知识结构的丰富和重构。丰富是现有知识对新知识的同化过程,重构则是概念改变,表现为理论的修正和改变。上述学习理论运用于教学中的一个重要方面就是设计和组织学习材料。学习材料具有多种形式,包含着与学习者固着观念相联系的同化点,能引发学习者的认知冲突,或显示新知识的特性导致概念改变,并且能提供新的情景便于学习者的知识迁移。因此综合设计和组织学习材料是促进学习者对知识进行有意义建构,提高其学习能力的关键。  相似文献   

12.
Several features have been identified that enhance learning from text. One of these features is explication. To explicate means to state directly, instead of requiring the reader to infer, organize, or construct relationships. This study investigated the effects of three types of embedded explication on science learning: etymological, causal, and analogical in terms of the Mayer and Greeno information processing model. Subjects read parallel texts containing explications presented in a difficult or easy sequence. Overall, groups receiving causal and analogical explication scored significantly higher than the control groups receiving filler material. This supports the use of causal explication to support organization and the use of analogy to link prior and new knowledge together in long-term memory. This study has implications for the design of text-based science instruction based both on the use of embedded explication and the sequencing of information.  相似文献   

13.
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14.
The purpose of this study was to extend previous research on the conditions that may promote understanding and abstraction via structural alignment, that is, through a comparison between two partially understood situations. Structural alignment is a route to analogical reasoning which differs from the typical route where an analogy is made by eliciting an unknown situation from a very familiar one. Ninety-nine eighth graders were presented with two pairs of scenarios; the first depicting two phenomena of heat flow and the second, two phenomena of the changing state of matter. Participants were randomly assigned to five different conditions which varied in the degree to which they required a comparisonbetween the phenomena in the scenario pairs. For each pair of scenarios, participants were asked to describe the differences between the two phenomena, explain what happens in the phenomena, rate the similarity between the two, and justify the ratings. Results show that analogical reasoning was promoted more in the condition where participants were asked to jointly interpret the phenomena depicted in the scenarios. For both pairs of scenarios, students in this condition reached a deeper understanding; they were more able to identify alignable differences between the phenomena, and recognize the abstract and general higher-order relational structure implied by the perceptually different situations.  相似文献   

15.
Research has shown that differences in the prior knowledge of the participants and in the learning indexes adopted can explain why some studies show positive learning effects of analogy enriched text while others do not. In the present studies, these two factors were combined into one through the construction of a learning index that measured incremental positive changes in the participants' prior knowledge after reading an analogy enriched or no analogy text. A second learning index was also used to evaluate whether the participants created well-formed conceptual models after reading the science text. These learning indexes were used in two studies in which the effects of analogy enriched versus no analogy text were compared on the learning of the scientific explanations of the day/night cycle and of the seasons. The participants were 3rd and 5th graders in the first study and 6th graders and college students in the other. Although only few of the participants learned the correct scientific explanation, those who read the analogy enriched text produced more incremental positive changes in their pretest explanations at posttest and delayed test and created more well-formed conceptual models close to the scientific one than those who read the no analogy text. They also recalled more information and created fewer invalid inferences in their recalls. The results indicate that analogies can be used without reservation to facilitate the learning of science and have broader implications about how to evaluate the learning of science in general.  相似文献   

16.
This research focuses on knowledge and ways in which knowledge may be constructed in the learner's mind. Specifically, it addresses the Web as a cognitive supporter for learning, organising and constructing a new domain of knowledge. In particular, the research analyses student reflection on constructing web sites. The analysis is based on an ongoing reflection of 40 prospective and in‐service teachers who took a course on educational computational environments. The students were asked to choose a complex topic and to document the process of constructing a web site that would present their chosen topic. They were to reflect upon the process with regard to their decision making, difficulties encountered, ways of thinking, considerations and insights. Student reflection is analysed from two perspectives: the first perspective examines how the task of constructing a web site contributes to student learning of complex topics, the second perspective views the students as teachers who explore how constructing a web site contributes to their understanding of learning processes.  相似文献   

17.
This study describes the multiple analogical models used to introduce and teach Grade 12 chemical equilibrium. We examine the teacher's reasons for using models, explain each model's development during the lessons, and analyze the understandings students derived from the models. A case study approach was used and the data were drawn from the observation of three consecutive Grade 12 lessons on chemical equilibrium, pre‐ and post‐lesson interviews, and delayed student interviews. The key analogical models used in teaching were: the “school dance”; the “sugar in a teacup”; the “pot of curry”; and the “busy highway.” The lesson and interview data were subject to multiple, independent analyses and yielded the following outcomes: The teacher planned to use the students' prior knowledge wherever possible and he responded to student questions with stories and extended and enriched analogies. He planned to discuss where each analogy broke down but did not. The students enjoyed the teaching but built variable mental models of equilibrium and some of their analogical mappings were unreliable. A female student disliked masculine analogies, other students tended to see elements of the multiple models in isolation, and some did not recognize all the analogical mappings embedded in the teaching plan. Most students learned that equilibrium reactions are dynamic, occur in closed systems, and the forward and reverse reactions are balanced. We recommend the use of multiple analogies like these and insist that teachers always show where the analogy breaks down and carefully negotiate the conceptual outcomes. © 2005 Wiley Periodicals, Inc. J Res Sci Teach 42: 1135–1159, 2005  相似文献   

18.
Transfer, the process of using knowledge or skills acquired in one context in a new or varied context, has long been the topic of spirited debate in the research community. In this chapter, fundamental dimensions that appear to underlie effective transfer are described. These fundamentals — subject-matter knowledge, general cognitive and metacognitive strategies, and motivation, particularly interest — are referred to as the seeds of transfer. As a means of presenting these fundamentals, five generalizations about transfer, drawn from the extensive literatures in transfer, domain learning, and analogical reasoning, are summarized. In addition, potential instructional barriers to transfer are highlighted, along with critical steps deemed necessary to enhance transfer within academic settings.  相似文献   

19.
It may be possible to teach reasoning strategies to subjects with poor reasoning, including many subjects with learning disabilities (LD), using curriculum designed around a sameness analysis. The higher order thinking skills of analogical and logical reasoning are defined using the sameness analysis methodology. The sameness in the strategy for forming a generalization from experience is called "reasoning by analogy," while the sameness in the strategy for applying generalizations is described by the syllogism (logical reasoning). The research base for effective instruction in analogical and logical reasoning, particularly with subjects with LD, is summarized. The wide applicability of reasoning by analogy and by syllogism as complementary strategies is illustrated through their use in a critical review of the editorial page of a daily newspaper, and in linking content material in several domains.  相似文献   

20.
Since the mid‐1980s, major efforts to reform education throughout the world have been unfolding under the banner of school restructuring. Central to this agenda for reform are alterations in the roles of all educational stakeholders. While a good deal of conceptual work, and some empirical analyses, have been devoted to the topic of role changes for teachers, administrators, parents, community members, and students at the school level, considerably less is known about the effects of restructuring on the role of central office administrators.

By analyzing the perceptions of 74 chief executive officers about how restructuring is shaping the superintendency in Kentucky, the study reported herein helps address this gap in the knowledge base. Three themes emerge from the analysis: (1) an enhanced role for superintendents in developing community; (2) a redefinition of the type of leadership needed to administer empowered schools; and (3) a mighty struggle to help individual schools deal with the process of systemic change.

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