共查询到20条相似文献，搜索用时 31 毫秒
1.
Pedagogical Affordances of Multiple External Representations in Scientific Processes 总被引：2，自引：2，他引：0
Multiple external representations (MERs) have been widely used in science teaching and learning. Theories such as dual coding theory and cognitive flexibility theory have been developed to explain why the use of MERs is beneficial to learning, but they do not provide much information on pedagogical issues such as how and in what conditions MERs could be introduced and used to support students?? engagement in scientific processes and develop competent scientific practices (e.g., asking questions, planning investigations, and analyzing data). Additionally, little is understood about complex interactions among scientific processes and affordances of MERs. Therefore, this article focuses on pedagogical affordances of MERs in learning environments that engage students in various scientific processes. By reviewing literature in science education and cognitive psychology and integrating multiple perspectives, this article aims at exploring (1) how MERs can be integrated with science processes due to their different affordances, and (2) how student learning with MERs can be scaffolded, especially in a classroom situation. We argue that pairing representations and scientific processes in a principled way based on the affordances of the representations and the goals of the activities is a powerful way to use MERs in science education. Finally, we outline types of scaffolding that could help effective use of MERs including dynamic linking, model progression, support in instructional materials, teacher support, and active engagement. 相似文献
2.
Animation has great potential for improving the way people learn. A number of studies in different scientific disciplines
have shown that instruction involving computer animations can facilitate the understanding of processes at the molecular level.
However, using animation alone does not ensure learning. Students sometimes miss essential features when they watch only animations,
mainly due to the cognitive load involved. Moreover, students seem to attribute a great deal of authority to the computer
and may develop misconceptions by taking animations of abstract concepts too literally. In this study, we attempted to explore
teachers’ perceptions concerning the use of animations in the classroom while studying biotechnological methods, as well as
the teachers’ contribution to the enactment of animations in class. Thirty high-school biotechnology teachers participated
in a professional development workshop, aimed at investigating how teachers plan for and support learning with animation while
studying biotechnological methods in class. From that sample, two teachers agreed to participate in two case studies aimed
at characterizing teachers’ contribution to the enactment of animations in class while studying biotechnological methods.
Our findings reveal marked teacher contribution in the following three aspects: establishing the “hands-on” point of view,
helping students deal with the cognitive load that accompanies the use of animation, and implementing constructivist aspects
of knowledge construction while studying using animations. 相似文献
3.
The article analyzes the concept of student cognitive engagement, and the manner in which classroom instruction may develop self‐regulated learners. Since theory and research on academic motivation, to date only vaguely define the role of learning processes, and since studies of learning strategies rarely assess motivational outcomes, our analysis integrates these two streams of literature. We also identify specific features of instruction and discuss how they might influence the complex of student interpretive processes focal to classroom learning and motivation. Measurement issues and research strategies peculiar to the investigation of cognitive engagement are addressed. 相似文献
4.
Do Students’ Approaches to Learning Affect their Perceptions of Using Computing and Information Technology? 总被引：1，自引：0，他引：1
Communication and Information Technology (C&IT) has become a key part of the teaching and learning strategy in UK Higher Education, although the level of usage is still variable across courses and institutions. As members of the Assisting Small‐group Teaching through Electronic Resources (ASTER) project team we were interested in the value of C&IT as a teaching tool. One of the aspects we looked at was student perception of using C&IT for a Virtual Seminar series in Psychology. Our research aimed to identify student learning approaches within the group and how this affected their adoption or rejection of the electronic medium. This research study involved Second Year Psychology degree level students completing a core module on biological and cognitive psychology. The module included ten seminar sessions, of which five were face‐to‐face and five used computer‐mediated communication through an Intranet Web board. The students completed the short ‘Approaches and Study Skills Inventory for Students’ (ASSIST) developed by Tait and Entwistle (1996). Our findings indicate only weak correlations between deep, strategic and surface approaches to learning and perception of C&IT at an overall level. However, individual measures of the deep, strategic and surface approaches to learning indicate potentially interesting relationships, and we offer suggestions on how these may assist in the design of computer‐mediated learning. 相似文献
5.
In recent years, researchers have become aware of the experiential grounding of scientific thought. Accordingly, research has shown that metaphorical mappings between experience-based source domains and abstract target domains are omnipresent in everyday and scientific language. The theory of conceptual metaphor explains these findings based on the assumption that understanding is embodied. Embodied understanding arises from recurrent bodily and social experience with our environment. As our perception is adapted to a medium-scale dimension, our embodied conceptions originate from this mesocosmic scale. With respect to this epistemological principle, we distinguish between micro-, meso- and macrocosmic phenomena. We use these insights to analyse how external representations of phenomena in the micro- and macrocosm can foster learning when they (a) address the students’ learning demand by affording a mesocosmic experience or (b) assist reflection on embodied conceptions by representing their image schematic structure. We base our considerations on empirical evidence from teaching experiments on phenomena from the microcosm (microbial growth and signal conduction in neurons) and the macrocosm (greenhouse effect and carbon cycle). We discuss how the theory of conceptual metaphor can inform the development of external representations. 相似文献
6.
7.
Jana Bouwma‐Gearhart James Stewart Keffrelyn Brown 《International Journal of Science Education》2013,35(9):1157-1174
Understanding the particulate nature of matter (PNM) is vital for participating in many areas of science. We assessed 11 students’ atomic/molecular‐level explanations of real‐world phenomena after their participation in a modelling‐based PNM unit. All 11 students offered a scientifically acceptable model regarding atomic/molecular behaviour in non‐heated solids. Yet, 10 of 11 students expressed the view that, in response to added heat energy, atoms/molecules in a solid increase in movement to a degree beyond what is scientifically accepted. These students attributed a gas‐like model of atomic/molecular movement to situations involving a heated solid. Of the students who held two conflicting models of atomic/molecular movement in solids, almost all provided justification for doing so, indicating their holding of the conflicting models was unproblematic. These findings can be interpreted to mean that students may drop constraints of certain scientific representations and apply, assess, or revise models when explaining unfamiliar phenomena. In fact, we believe students may develop conflicting causal models as a result of misperceptions they acquire, in part, during classroom instruction regarding atomic/molecular movement. However, our findings may also be interpreted as an incidence of student model development that may later aid their understanding of a more complex model, one that involves substantial sub‐atomic electron movement to account for heat transfer in solids. Whether or not this is the case remains to be seen. Implications for student learning and instruction are discussed. 相似文献
8.
Concreteness fading has been proposed as a general instructional approach to support learning of abstract mathematics and science concepts. Accordingly, organizing external knowledge representations in a three-step concrete-to-idealized sequence should be more beneficial than the reverse, concreteness introduction, sequence. So far, evidence for the benefits of concreteness fading come mainly from studies investigating learning of basic mathematics concepts. Studies on learning natural science concepts are scarce and have not implemented the full three-step-sequence. In an experimental classroom study (N = 70), we compared concreteness fading and concreteness introduction in high school science education about electromagnetic induction using a detailed assessment. Furthermore, we explored whether these sequences differentially affect the use of the different representations during instruction. Both sequences were equally effective and there were no differences in using the representations. We discuss why our results question the proposed advantages of concreteness fading and highlight conceptual differences and learning goals across domains. 相似文献
9.
Cornelis Tuk 《欧洲师范教育杂志》1989,12(2):159-167
The following is a report on our findings when working with classroom logs and diaries in seminars on socio‐cultural knowledge, in which students are expected to collect and process information according to the principle of guided‐learning autonomy in open project work. The classroom log provides the guidance required by the various target groups, and the diaries record the students’ emotional and personal observations on their own learning processes. Both logs and diaries have proved to be valuable in teacher training, where the objective was to intensify classroom learning so that the lecturer can the more easily assume the role of a meta‐cognitive guide and an external monitor in the learning process. Transferred to other areas of study this method may also be of use to work with similar projects in the schools.
10.
Hui Jin Xin Wei Peiran Duan Yuying Guo Wenxia Wang 《International Journal of Science Education》2016,38(2):319-343
We investigated how Chinese physics teachers structured classroom discourse to support the cognitive and social aspects of inquiry-based science learning. Regarding the cognitive aspect, we examined to what extent the cognitive processes underlying the scientific skills and the disciplinary reasoning behind the content knowledge were taught. Regarding the social aspect, we examined how classroom discourse supported student learning in terms of students' opportunities to talk and interaction patterns. Our participants were 17 physics teachers who were actively engaged in teacher education programs in universities and professional development programs in local school districts. We analyzed one lesson video from each participating teacher. The results suggest both promises and challenges. Regarding the cognitive aspect of inquiry, the teachers in general recognized the importance of teaching the cognitive processes and disciplinary reasoning. However, they were less likely to address common intuitive ideas about science concepts and principles. Regarding the social aspect of inquiry, the teachers frequently interacted with students in class. However, it appeared that facilitating conversations among students and prompting students to talk about their own ideas are challenging. We discuss the implications of these findings for teacher education programs and professional development programs in China. 相似文献
11.
It is our presupposition that there is still a need for more research about how classroom practices can exploit the use and power of visualization in mathematics education. The aim of this article is to contribute in this direction, investigating how visual representations can structure geometry activity in the classroom and discussing teaching practices that can facilitate students’ visualization of mathematical objects. We present one illustrative episode that shows how drawings of geometrical figures have a powerful role in structuring and modifying the mathematical activity in the classroom. It was selected from a database that we have been building to investigate the learning of mathematics in public elementary schools in Brazil. The framework of Activity Theory helped in the characterization of the episode as a system of interconnected activities. We discuss the changes and transformations perceived in those activities; and we explore the idea of miniature cycles of learning actions to focus on the mathematical learning that is taking place. We describe the dynamics and the complexity of the ongoing activity in the calculation of areas; and, how drawings form a part, and show their influence, in it. We argue that part of this influence was associated with the contradiction between abstract mathematical ideas and their empirical representations, revealed by the tensions perceived in the activities analysed; and, simultaneously, that we could see as an impelling force for the learning of the rules and norms which regulate the use of visual representations in school mathematics. 相似文献
12.
This article explores how students' mathematical representations can be used as formative assessments. We introduce a framework for teaching and learning that integrates representations as instructional and assessment tools, and illustrate these uses of student representations with reference to a study conducted with 250 5th-grade students. This study focused on students' ability to recognize and use a variety of representations of the fraction concept. Finally, we discuss the implications of the framework for teacher knowledge and classroom practice. 相似文献
13.
Monica McGlynn-Stewart Shelley Murphy Ivorie Pinto Emma Mogyorodi Thien Nguyen 《Education 3-13》2019,47(6):692-704
There is conflicting research on the value of using digital technology with young children. This study investigated how an app, used in conjunction with dual language picture books, can support the social, emotional, and literacy learning of bi/multilingual children. Twenty-one children used the app Talking Stickers at home and school for four weeks. The classroom was observed and the educators and parents were interviewed and surveyed. The findings indicated that children had enhanced opportunities to practice social, cognitive, and multi-lingual literacy skills, and bonds between home and school were strengthened. The research has implications for classroom practice and home-school programmes. 相似文献
14.
Multiple external representations (MERs) are central to the practice and learning of science, mathematics and engineering, as the phenomena and entities investigated and controlled in these domains are often not available for perception and action. MERs therefore play a twofold constitutive role in reasoning in these domains. Firstly, MERs stand in for the phenomena and entities that are imagined, and thus make possible scientific investigations. Secondly, related to the above, sensorimotor and imagination-based interactions with the MERs make possible focused cognitive operations involving these phenomena and entities, such as mental rotation and analogical transformations. These two constitutive roles suggest that acquiring expertise in science, mathematics and engineering requires developing the ability to transform and integrate the MERs in that field, in tandem with running operations in imagination on the phenomena and entities the MERs stand for. This core ability to integrate external and internal representations and operations on them – termed representational competence (RC) – is therefore critical to learning in science, mathematics and engineering. However, no general account of this core process is currently available. We argue that, given the above two constitutive roles played by MERs, a theoretical account of representational competence requires an explicit model of how the cognitive system interacts with external representations, and how imagination abilities develop through this process. At the applied level, this account is required to develop design guidelines for new media interventions for learning science and mathematics, particularly emerging ones that are based on embodied interactions. As a first step to developing such a theoretical account, we review the literature on learning with MERs, as well as acquiring RC, in chemistry, biology, physics, mathematics and engineering, from two perspectives. First, we focus on the important theoretical accounts and related empirical studies, and examine what is common about them. Second, we summarise the major trends in each discipline, and then bring together these trends. The results show that most models and empirical studies of RC are framed within the classical information processing approach, and do not take a constitutive view of external representations. To develop an account compatible with the constitutive view of external representations, we outline an interaction-based theoretical account of RC, extending recent advances in distributed and embodied cognition. 相似文献
15.
In this article we examine the teacher's role as a mediator of knowledge and cognitive learning in the classroom. We cite findings from the research areas of teacher effectiveness, teacher expertise, and curriculum knowledge. These data strongly support user‐friendly explicit methods of classroom teaching. We also discuss issues raised in conjunction with alternative conceptions of the teaching process. Finally, we note the importance of incorporating teacher effectiveness research findings into teacher education programmes, and of identifying the various misconceptions that have been used to criticise this body of information. 相似文献
16.
O'Day DH 《CBE life sciences education》2006,5(3):255-263
There is accumulating evidence that animations aid learning of dynamic concepts in cell biology. However, existing animation packages are expensive and difficult to learn, and the subsequent production of even short animations can take weeks to months. Here I outline the principles and sequence of steps for producing high-quality PowerPoint animations in less than a day that are suitable for teaching in high school through college/university. After developing the animation it can be easily converted to any appropriate movie file format using Camtasia Studio for Internet or classroom presentations. Thus anyone who can use PowerPoint has the potential to make animations. Students who viewed the approximately 3-min PowerPoint/Camtasia Studio animation "Calcium and the Dual Signalling Pathway" over 15 min scored significantly higher marks on a subsequent quiz than those who had viewed still graphics with text for an equivalent time. In addition, results from student evaluations provided some data validating the use of such animations in cell biology teaching with some interesting caveats. Information is also provided on how such animations can be modified or updated easily or shared with others who can modify them to fit their own needs. 相似文献
17.
Observer ratings are often used to measure instructional quality. They are, however, usually based on observations gathered over short periods of time. Few studies have attempted to determine whether these periods are sufficient to provide reliable measures of instructional quality. Using generalizability theory, this study investigates (a) how three dimensions of instructional quality – classroom management, personal learning support, and cognitive activation of students – vary between the lessons of a specific teacher, and (b) how many lessons per teacher are necessary to establish sufficiently reliable measures of these dimensions. Analyses are based on ratings of five lessons for 38 teachers. Classroom management and personal learning support were stable across lessons, whereas cognitive activation showed high variability. Consequently, one lesson per teacher suffices to measure classroom management and personal learning support, whereas nine lessons would be needed for cognitive activation. The importance of advancing our theoretical understanding of cognitive activation is discussed. 相似文献
18.
《Literacy》2017,51(1):26-35
This article explores the complex nature of the literature classroom by drawing on the cognitive linguistic framework Text World Theory to examine the teacher's role as facilitator and mediator of reading. Specifically, the article looks at how one teacher used visual representations as a way of allowing students to engage in a more personal and less teacher‐driven transaction with a poem and to encourage them to reflect on their own roles as active makers of meaning and knowledge in the classroom. The article shows how teachers can be mindful of the various contextual factors that can privilege and legitimise certain kinds of response in the classroom and be wary of external factors and pressures that can promote the idea of preconceived knowledge. The teacher in the case study presented was able to both facilitate the experience of reading poetry in an unmediated way and also develop her students' metacognition in relation to the reading process itself. The article shows how Text World Theory's status as a socio‐cognitive grammar may be of benefit to teachers in understanding the nature of communicative interaction and literary transaction. 相似文献
19.
Towards a Framework for Attention Cueing in Instructional Animations: Guidelines for Research and Design 总被引：1，自引：0，他引：1
Björn B. de Koning Huib K. Tabbers Remy M. J. P. Rikers Fred Paas 《Educational Psychology Review》2009,21(2):113-140
This paper examines the transferability of successful cueing approaches from text and static visualization research to animations.
Theories of visual attention and learning as well as empirical evidence for the instructional effectiveness of attention cueing
are reviewed and, based on Mayer’s theory of multimedia learning, a framework was developed for classifying three functions
for cueing: (1) selection—cues guide attention to specific locations, (2) organization—cues emphasize structure, and (3) integration—cues
explicate relations between and within elements. The framework was used to structure the discussion of studies on cueing in
animations. It is concluded that attentional cues may facilitate the selection of information in animations and sometimes
improve learning, whereas organizational and relational cueing requires more consideration on how to enhance understanding.
Consequently, it is suggested to develop cues that work in animations rather than borrowing effective cues from static representations.
Guidelines for future research on attention cueing in animations are presented. 相似文献
20.
Explanations of the role of analogies in learning science at a cognitive level are made in terms of creating bridges between new information and students' prior knowledge. In this empirical study of learning with analogies in an 11th grade chemistry class, we explore an alternative explanation at the “social” level where analogy shapes classroom discourse. Students in the study developed analogies within small groups and with their teacher. These classroom interactions were monitored to identify changes in discourse that took place through these activities. Beginning from socio‐cultural perspectives and hybridity, we investigated classroom discourse during analogical activities. From our analyses, we theorized a merged discourse that explains how the analog discourse becomes intertwined with the target discourse generating a transitional state where meanings, signs, symbols, and practices are in flux. Three categories were developed that capture how students intertwined the analog and target discourses—merged words, merged utterances/sentences, and merged practices. © 2011 Wiley Periodicals, Inc. J Res Sci Teach 48: 771–792, 2011 相似文献