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1.
In accumulating knowledge, direct modes of learning are complemented by productive processes, including self‐generation based on integration of separate episodes. Effects of the number of potentially relevant episodes on integration were examined in 4‐ to 8‐year‐olds (= 121; racially/ethnically heterogeneous sample, English speakers, from large metropolitan area). Information was presented along with unrelated or related episodes; the latter challenged children to identify the relevant subset of episodes for integration. In Experiment 1, 4‐ and 6‐year‐olds integrated in the unrelated context. Six‐year‐olds also succeeded in the related context in forced‐choice testing. In Experiment 2, 8‐year‐olds succeeded in open‐ended and forced‐choice testing. Results illustrate a developmental progression in productive extension of knowledge due in part to age‐related increases in identification of relevant information.  相似文献   

2.
Mayer多媒体学习的认知理论模型涉及感觉记忆、工作记忆、长时记忆三大基本部件和五大认知加工过程,但其科学基础仍有待深入考察。认知神经科学对感觉记忆、工作记忆和长时记忆的探索成果为多媒体学习认知理论奠定了更为深层的科学基础。认知神经科学认为,感觉记忆中的视觉记忆和声觉记忆在信息存储量、表征与编码、保持时间等方面存在互补,为多媒体学习认知理论中"双重通道假设"提供了更深层次的科学基础。工作记忆是多媒体学习认知加工过程的主要处理单元,认知神经科学基于脑成像技术提出的工作记忆加工成分结构及其功能定位模型和语音短时记忆功能模型,揭示了工作记忆中的信息处理机制,进一步推进了对工作记忆的基础研究。认知神经科学将长时记忆分为陈述性记忆和程序性记忆,长时记忆中信息存储的层次网络模型、激活扩散模型、集理论模型等更深入地推进了多媒体学习认知加工过程的科学基础。德国心理学家Schnotz从描述性表征和描绘性表征两个方面提出了多媒体学习"图文理解整合模型"(ITPC),这一模型揭示了图文理解的过程机制,是当前多媒体学习认知理论模型的最新发展成果。  相似文献   

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4.
This study explores the impact of ‘Scientific Communication’ (SC) skills instruction on students’ performances in scientific literacy assessment tasks. We present a general model for skills instruction, characterized by explicit and spiral instruction, integration into content learning, practice in several scientific topics, and application of performance tasks. The model was applied through an instructional program that focuses on the following learning skills: information retrieval, scientific reading and writing, listening and observing, data representation, and knowledge presentation. Throughout the 7th–8th grades, 160 students learned the whole program or one of its components: structured instruction (SI) of SC skills, or performance tasks (PT). A comparison group of 42 students did not receive instruction of SC skills. Students’ performances were assessed through a questionnaire and a complex task that measured students’ scientific content knowledge, SC skills, and the quality of the final products. Results indicated that students who learned the whole program or one of its components achieved higher scores in all categories than the comparison group students. High achievers can benefit from just one component of the program: either structured instruction (SI) or learning from practice (PT). However, they can hardly acquire SC skills spontaneously. Low and average achievers require both components of the SC program to improve their performances. Results show that without planned intervention, the spontaneous attainment of SC skills occurs only to a limited extent. Systematic teaching of skills can make a significant difference. The explicit instruction of skills integrated into scientific topics, the opportunities to implement the skills in different contexts, the role of performance tasks as ‘assessment for learning’—all these features are important and necessary for improving students’ scientific literacy. Our general model of skills instruction can be applied to the instruction of other high-order skills. Its application can lead to the realization of the central goal of science education: literate students possessing scientific knowledge.  相似文献   

5.
以100名4-5岁中班幼儿为研究对象,采用任务分离范式考察内隐学习条件下象形文字(东巴文、甲骨文)对幼儿汉字字形记忆的影响。该篇研究包括两个实验,幼儿均通过颜色判断任务进行学习,实验1采用再认任务考察象形文字对幼儿汉字字形外显记忆的影响,实验2采用偏好判断任务考察象形文字对幼儿汉字字形内隐记忆的影响。研究发现,在内隐学习条件下,甲骨文比东巴文更能够促进汉字字形的外显记忆,象形文字可以成为幼儿汉字学习的良好辅助材料。  相似文献   

6.
This article examines the learning of different types of graphic information by subjects with different levels of education and knowledge of the content represented. Three levels of graphic information learning were distinguished (explicit, implicit, and conceptual information processing) and two experiments were conducted, looking at graph and geographical map learning. The graph study (Experiment 1) examined the influence of the variables' numerical relationship structure on adolescent students with different levels of education and knowledge of social sciences and also assessed their proportional reasoning skills. The map study (Experiment 2) looked at the learning of a geographical map studied spontaneously by secondary school and university students with different geographical knowledge (experts and novices) and also assessed their spatial skills. The results of both studies show that graph and map learning performance improves with the subjects' educational level. The groups' differential performance varied according to the type of information involved (explicit, implicit, or conceptual). The subjects' knowledge of the domain in question determined the level at which they processed the information. Verbal and superficial processing of graphic information were also found to predominate. This has important educational implications, suggesting the need for differential treatment in teaching different types of information. The results of the study also raise interesting issues regarding the type of expertise involved in learning graphic information: expertise related to the content represented, to knowledge of the syntax (graphicacy), and/or the system of knowledge graphically represented – spatial in the case of maps, numerical in the case of graphs.  相似文献   

7.
Theatre is often introduced into science museums to enhance visitor experience. While learning in museums exhibitions received considerable research attention, learning from museum theatre has not. The goal of this exploratory study was to investigate the potential educational role of a science museum theatre play. The study aimed to investigate (1) cognitive learning outcomes of the play, (2) how these outcomes interact with different viewing contexts and (3) experiential learning outcomes through the theatrical experience. The play ‘Robot and I’, addressing principles in robotics, was commissioned by a science museum. Data consisted of 391 questionnaires and interviews with 47 children and 20 parents. Findings indicate that explicit but not implicit learning goals were decoded successfully. There was little synergy between learning outcomes of the play and an exhibition on robotics, demonstrating the effect of two different physical contexts. Interview data revealed that prior knowledge, experience and interest played a major role in children’s understanding of the play. Analysis of the theatrical experience showed that despite strong identification with the child protagonist, children often doubted the protagonist’s knowledge jeopardizing integration of scientific content. The study extends the empirical knowledge and theoretical thinking on museum theatre to better support claims of its virtues and respond to their criticism.  相似文献   

8.

Involving students in the co-design of educational curricula and practices can benefit both students and teachers. Students who participate in co-design may show better learning or increased agency or engagement. In the present study, we investigated what kind of science knowledge or practices can be learned by student co-designers while engaging in co-design practices and how that learning happens with six high school students. We created a model to guide the analysis of students’ learning with technology in co-designing processes. The results revealed that students learned engineering design process even if no explicit instruction on engineering learning was given. Also, our analysis suggested that co-designing with technology enabled learning of the engineering design process and potentially furthered learning of science because it promoted knowledge integration. The results have implications for understanding and enhancing engineering design and science learning through co-designing with technology.

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9.
Science consists of a body of knowledge and a set of processes by which the knowledge is produced. Although these have traditionally been treated separately in science instruction, there has been a shift to an integration of knowledge and processes, or set of practices, in how science should be taught and assessed. We explore whether a general overall mastery of the processes drives learning in new science content areas and if this overall mastery can be improved through engaged science learning. Through a review of literature, the paper conceptualizes this general process mastery as scientific sensemaking, defines the sub-dimensions, and presents a new measure of the construct centered in scenarios of general interest to young adolescents. Using a dataset involving over 2500 6th and 8th grade students, the paper shows that scientific sensemaking scores can predict content learning gains and that this relationship is consistent across student characteristics, content of instruction, and classroom environment. Further, students who are behaviorally and cognitively engaged during science classroom activities show greater growth in scientific sensemaking, showing a reciprocal relationship between sensemaking ability and effective science instruction. Findings from this work support early instruction on sensemaking activities to better position students to learn new scientific content.  相似文献   

10.
A central aspect of the Reggio approach to early childhood education is documentation, in which educators observe, record, and display children's work. Educational anecdotes and developmental theory suggest that documentation may facilitate children's memory; the current study explored this possibility empirically. Sixty-three preschool/kindergarten children experienced a novel learning event. Two days later, children were reminded with either documentation or worksheets of event details and the factual information that had been presented, or they were not reminded. Three weeks later, children completed a memory interview that included episodic and semantic measures. Children in the documentation and worksheet conditions remembered more factual information than those in the no-reminder condition. Children in the documentation condition produced more on-topic speech than those in the worksheet condition during reminding and a subsequent learning session. Potential benefits of documentation for classroom performance are discussed.  相似文献   

11.
Inquiring into the theoretical underpinnings of dietetic curriculum provides a means for further understanding who dietitians are (identity) and what dietitians do (performativity). Since dietetic curriculum exists as a structural influence on the dietetic student identity, it is worth inquiring into how such a structure is theoretically informed, especially considering that until now, this process has not be undertaken. This research attempts to illuminate how dietetic knowledge is generated and how various institutional structures reinforce this knowledge. Since dietetic education in Canada is standardized by a means of national accreditation, the accreditation texts were analyzed following a poststructural discourse analysis method. Those aspects of the Accreditation Manual concerning dietetic education were scrutinized to illuminate the presence/absence of curricular theory, knowledge assumptions, and educational values. Findings of the discourse analysis indicate that there is no explicit curricular theory framing dietetic education, learning processes are sequential and apolitical, and dietetic knowledge is decontextualized from the social world. These findings have implications for dietetic education, the scholarship of teaching and learning within the profession, and dietetic epistemology. With further attention to these issues it is hoped that dietetic educators will be encouraged to reflect on the historical and theoretical foundations of their curricula and will consider how teaching and learning, and ultimately dietetic knowledge could be enhanced through a socially integrated feminist science of food and nutrition.  相似文献   

12.
以100名4-5岁中班幼儿为研究对象,采用任务分离范式考察外显学习条件下东巴文和甲骨文对汉字字形记忆的影响.研究包括两个实验,幼儿均在有意教学条件下进行学习,实验一通过再认任务考察象形文字对汉字字形外显记忆的影响,实验二采用偏好判断任务考察象形文字对汉字字形内隐记忆的影响.结果表明,在外显学习条件下,东巴文与甲骨文对幼儿汉字字形记忆的促进作用是相当的.象形文字能够促进幼儿汉字字形的记忆,借助象形文字促进幼儿的汉字字形学习,符合幼儿汉字学习的“外部语言符号-汉字表象思维-内部心理语言-外部口语表达”的加工机制.  相似文献   

13.
The challenge of preparing students for the information age has prompted administrators to increase technology in the public schools. Yet despite the increased availability of technology in schools, few teachers are integrating technology for instructional purposes. Preservice teachers must be equipped with adequate content knowledge of technology to create an advantageous learning experience in science classrooms. To understand preservice teachers’ conceptions of technology integration, this research study explored 15 elementary science methods students’ definitions of technology and their attitudes toward incorporating technology into their teaching. The phenomenological study took place in a science methods course that was based on a constructivist approach to teaching and learning science through science activities and class discussions, with an emphasis on a teacher beliefs framework. Data were collected throughout the semester, including an open-ended pre/post-technology integration survey, lesson plans, and reflections on activities conducted throughout the course. Through a qualitative analysis, we identified improvements in students’ technology definitions, increased technology incorporation into science lesson plans, and favorable attitudes toward technology integration in science teaching after instruction. This research project demonstrates that positive changes in beliefs and behaviors relating to technology integration in science instruction among preservice teachers are possible through explicit instruction.  相似文献   

14.
It is widely believed that exploration is a mechanism for young children's learning. The present investigation examines preschoolers’ beliefs about how learning occurs. We asked 3‐ to 5‐year‐olds to articulate how characters in a set of stories learned about a new toy. Younger preschoolers were more likely to overemphasize the role of characters’ actions in learning than older children were (Experiment 1, N = 53). Overall performance improved when the stories explicitly stated that characters were originally ignorant and clarified the characters’ actions, but general developmental trends remained (Experiment 2, N = 48). These data suggest that explicit metacognitive understanding of the relation between actions and learning is developing during the preschool years, which might have implications for how children learn from exploration.  相似文献   

15.
Lick suppression experiments with rats revealed that the magnitude of both second-order conditioning (Experiment 1) and sensory preconditioning (Experiment 2) was superior when that conditioning was based on backward (US→CS) relative to forward (CS→US) first-order pairings of a CS and US. The superiority of backward relative to forward first-order conditioning on suppression to the higher order cues can be understood by assuming that the magnitude of higher order conditioning was determined by a memory representation of the higher order cues that provided information about the expected temporal location of the US. The results suggest that temporal information such as order between paired CSs and USs was encoded, preserved, and integrated with memory for the higher order stimuli. The relevance of these findings to memory integration in Pavlovian learning, the temporal coding hypothesis (Barnet, Arnold, & Miller, 1991; Matzel, Held, & Miller, 1988), backward excitatory conditioning, and the associative structure that underlies second-order Pavlovian fear conditioning are discussed.  相似文献   

16.
The last two decades have witnessed the gradual implementation of integrated science curriculum at the junior secondary level in China. However, in most provinces of China, the implementation is not as successful as expected. Challenges were reported, yet without fine-grained investigation, with respect to science teachers' instruction on integrated science. In this study, we aim to detect major problems by investigating the instruction of integrated science at the secondary level. Classroom observation focused on the teacher and student verbal behavior, teachers' competency of instructional organization, their presentation of instructional content, and the organization of learning activities. Findings revealed that students were provided with limited opportunities for participating and engaging in learning as science teachers were dominant in classroom talk. Teachers emphasized on the integration of knowledge within one subject (within-subject knowledge), but not the integration of knowledge between subjects (cross-subject knowledge), resulting in the unsuccessful instruction of the integrative content. What is more, teachers were inadequately competent in designing and delivering science, technology and society content, scientific inquiry and scientific experiments, which also affected the quality of instruction on integrated science.  相似文献   

17.
To improve student science achievement in the United States we need inquiry-based instruction that promotes coherent understanding and assessments that are aligned with the instruction. Instead, current textbooks often offer fragmented ideas and most assessments only tap recall of details. In this study we implemented 10 inquiry-based science units that promote knowledge integration and developed assessments that measure student knowledge integration abilities. To measure student learning outcomes, we designed a science assessment consisting of both proximal items that are related to the units and distal items that are published from standardized tests (e.g., Trends in International Mathematics and Science Study). We compared the psychometric properties and instructional sensitivity of the proximal and distal items. To unveil the context of learning, we examined how student, class, and teacher characteristics affect student inquiry science learning. Several teacher-level characteristics including professional development showed a positive impact on science performance.  相似文献   

18.
Depletion of limited working memory resources may occur following extensive mental effort resulting in decreased performance compared to conditions requiring less extensive mental effort. This “depletion effect” can be incorporated into cognitive load theory that is concerned with using the properties of human cognitive architecture, especially working memory, when designing instruction. Two experiments were carried out on the spacing effect that occurs when learning that is spaced by temporal gaps between learning episodes is superior to identical, massed learning with no gaps between learning episodes. Using primary school students learning mathematics, it was found that students obtained lower scores on a working memory capacity test (Experiments 1 and 2) and higher ratings of cognitive load (Experiment 2) after massed than after spaced practice. The reduction in working memory capacity may be attributed to working memory resource depletion following the relatively prolonged mental effort associated with massed compared to spaced practice. An expansion of cognitive load theory to incorporate working memory resource depletion along with instructional design implications, including the spacing effect, is discussed.  相似文献   

19.
BackgroundText illustrated by pictures (i.e., multimedia material) is often used to improve learning outcomes. To support learning, it is essential to understand and specify the ongoing cognitive processes when processing illustrated texts.AimsWe focus on three cognitive processes identified when processing non-illustrated texts: activation, integration, and validation. In three experiments, we investigated whether the three processes occur during the processing of illustrated texts and whether the processes differ between illustrated and non-illustrated texts.SamplesExperiment 1 had 170 participants, Experiment 2 had 221 participants, and Experiment 3 had 132 participants.MethodAll experiments used an adapted version of the contradiction paradigm. In Experiments 1 and 2, participants read texts that contained information that was consistent vs. inconsistent with a later sentence (target sentence). It was additionally varied whether a picture illustrated the consistent vs. inconsistent information. In Experiment 3, only the pictures were consistent or inconsistent with the target sentence. We measured reading times for the target sentence and the following sentence (spillover sentence).ResultsIn all three experiments, reading times were significantly longer in the inconsistent than in the consistent conditions. This prolongation of reading times was not affected by the picture in Experiments 1 and 2.ConclusionOur results indicate that activation, integration, and validation processes are similar when processing non-illustrated and illustrated texts (Experiments 1 and 2) and also occur when information is presented across text and picture (Experiment 3). We discuss the implications for the theoretical foundations of multimedia learning.  相似文献   

20.
Learning with instructional animations may overstretch limited working memory resources due to intense processing demands associated with transient information. The authors investigated whether explicit instructional advice coupled with a task-specific learner control mechanism (such as a timeline scrollbar) could facilitate the successful self-management of transient information. The effectiveness of a timeline scrollbar that allowed self-pacing and self-sequencing of animations was compared with computer-controlled animations. Experiment 1 demonstrated that a timeline scrollbar (with instructional advice on its strategic use) enhanced the retention of stroke sequences in writing Chinese characters. In Experiment 2, a timeline scrollbar was used in an integrated set of narrated animations dealing with complex scientific information. Retention and comprehension post-tests indicated that although a scrollbar accompanied by instructional advice in its use assisted novice learners, no such effect was found with participants who possessed higher levels of prior knowledge. The findings have implications for the formulation of criteria for the effective incorporation of learner control into the design of instructional animations.  相似文献   

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