Student Perceptions of Industrial Chemistry Classroom Learning Environments

This article describes a study conducted in Israel which focused on how learning industrial chemistry case studies affects students' perceptions of their classroom learning environment and their interest in chemistry studies. The goal of the study was to determine the effects of industrial case studies on students' perceptions of chemistry in general, and industrial chemistry in particular. Information on students' perceptions was gathered from a learning environment inventory specifically developed for this study. It was observed that industrial chemistry case studies helped in providing students with a relevant picture of chemistry in general and their chemistry studies in particular. It was also found that teachers who had attended an intensive training workshop were the most successful in presenting the relevance of chemistry in the case studies. These teachers also were more successful in raising students' awareness of the social implications of chemistry studies. Furthermore, their students had a better awareness of the contribution made by chemistry studies to their preparation as future citizens and for a possible career in chemistry. These findings have important implications for any decisions about whether to make industrial chemistry case studies obligatory for students who major in chemistry. There are further implications regarding the content and learning strategies to be used for the professional development of science teachers in general and chemistry teachers in particular. This revised version was published online in July 2006 with corrections to the Cover Date.     

A Cross-Age Study of Different Perspectives in Solution Chemistry from Junior to Senior High School

This study reports on research examining what students think about aspects of solution chemistry and seeks to establish what alternative conceptions they hold in this area. To achieve this aim the researchers developed a test comprising of open-ended questions that evaluated students understanding of solution chemistry. The test was administered to 441 students selected randomly from different grades, grade 7 through grade 10. The research findings suggest that students have difficulty at comprehending the investigated concepts in solution chemistry. Alternative conceptions about the concepts of dissolution, chemical bonding, evaporation and condensation influence latter learning. Interestingly, the grade 9 students have the least percentages, except for Item 3, amongst grades in terms of alternative conception. Also, students' alternative conceptions are also stored in long-term memory and interact with each another. In the light of the findings, it can be suggested that the future research may need to focus on classifying of students' responses in terms of categories in understanding such as propositions, strings, images, episode, intellectual skills and cognitive strategies.     

Effects of Time Perspective on Student Motivation: Introduction to a Special Issue

This article introduces this special issue by establishing a conceptual foundation for thinking about how students' conceptions of time influence motivation and achievement. In particular, we describe how students' perceptions of the utility of what they are learning for their futures can positively affect motivation. Temporal perspective is tied to current models of motivation and learning such as intrinsic motivation and self-regulation. We present 2 purposes for organizing this issue: (a) initiating discussion and research about how conceptions of the future influence and are influenced by students' motivation and (b) bridging gaps in the field between American and international perspectives on learning and motivation. We conclude by introducing the 6 articles that comprise this special issue of Educational Psychology Review.     

超媒体环境下自主学习有效干预模式研究——扶助式学习与英语阅读

近年来,自主学习逐渐成为学术界的一个热点问题。然而,超媒体环境下自主英语学习的有效干预模式研究却为数不多。本研究探讨超媒体环境下扶助式学习与英语阅读的关系,某综合性高校经选取的某班30名大学本科学生被随机分为两组：即无扶助学习组（NS）及概念建构组（CS）,均要求在半小时的时间内在超媒体环境下学习有关美国文化的内容。数据收集工具为有声思考法。结果显示,30分钟的自主阅读过程中,CS组的学生无论是在学习计划、学习监控,还是学习策略的使用上,都显著的高于NS组的学生;两组同学在各项学习监控指标上都呈下降趋势。研究结果还证明,有声思考法是考察超媒体环境下自主阅读过程的有效方法。     

Student restraints to reform: Conceptual change issues in enhancing students' learning processes

Considerable research has been published on students' alternative conceptions of science concepts and the means of addressing those alternative conceptions. However, few studies have been reported on students' conceptions of learning and consequent learning processes and attempts to change such conceptions and processes. Recent research has shown that students' beliefs can act as barriers to the implementation of educational reforms that aim to alter students' learning processes. In this study an interpretive methodology was employed by a teacher participant-observer to investigate barriers to students' adoption of an alternative referent for learning and its consequent learning strategies in a Grade 11 chemistry class. Student narratives suggest that both “cold” and “hot” contextual factors influenced students' willingness to adopt an alternative referent. The consideration of “hot” factors, including students' beliefs, trust of the teacher, and ownership of the change process, is necessary if such change is to be understood more fully. The value and difficulties of a teacher adopting this researcher's perspective are also explored.     

关于培养化学学习兴趣的探讨

学习兴趣是学生探求知识的巨大动力，是发明创造的精神源泉．因而，在化学教学中培养学生的学习兴趣具有十分重要的作用．本文主要从师生情感、教学艺术、教学方法、实验教学、课外活动五个方面探讨了如何在化学教学中培养学生的学习兴趣．     

Learning in engineering: Teacher as researcher in a tertiary context

This study focuses on the efforts of a small group of undergraduate engineering students as they explore their perceptions of their learning environment generally, and their approaches to learning in a specific engineering subject. A case study methodlogy is used, and my role of teacher as researcher is described and contextualised as I work with my students in weekly meetings outside their classrooms. Issues of cognition and affect emerge as we negotiate and develop a process where the students act as observers in their own classrooms. Observers' reports to weekly group meetings provide a framework to challenge individual students' assumptions about their learning approaches, and to explore enhanced metacognition. The nature of learning in engineering as a complex interaction of problematic issues is evidenced through this observation and reporting process. Implications for other learning contexts are considered.     

The role of conceptual conflict in conceptual change and the design of science instruction

Conceptual conflict has long been recognized as a factor that could facilitate student learning. Due, however, to the lack of a convincing explanation of why it occurs, and how it can be resolved, it has seldom been used in instructional design. Its potential use in instruction is particularly relevant in the light of the recent, well-documented finding that students' existing conceptions frequently constitute a barrier to effective learning. This article examines conceptual conflict in the light of an epistemological model of learning as conceptual change. This analysis shows that the conceptual change model provides an explanation of conceptual conflict which is sufficiently detailed to allow it to be used in the design of instruction. The results of two studies, the first of which addressed the concepts of mass, volume, and density, and the second, the concept of speed, show that instruction, designed in this way, is effective in changing students' existing conceptions.     

An International Study of Prospective Teachers’ Initial Teaching Conceptions and Concerns: the case of teaching ‘combustion’

An important task of science teachers should be to take pupils’ (pre)conceptions and learning difficulties into account and to negotiate about the meanings of specific concepts. In this context, teachers’ pedagogical content knowledge plays an important role. This article presents an international study of Dutch, Finnish, English and Greek pre-service teachers’ conceptions and concerns of how to teach the concept of combustion. The prospective science teachers were invited to prepare a lesson about this concept for pupils of junior secondary school level. The prospective teachers were not allowed to consult any textbook. Research data were obtained from audio-taped semi-structured interviews with the prospective teachers. In addition, their written lesson plans and their answers to an accompanying questionnaire were collected and analysed. The results reveal a number of important characteristics of prospective teachers’ views and concerns regarding the teaching of combustion. The implications of the study for science teacher education will be presented.     

Autonomy supported,learner-controlled or system-controlled learning in hypermedia environments and the influence of academic self-regulation style

This study focuses on learning in three different hypermedia environments that either support autonomous learning, learner-controlled learning or system-controlled learning and explores the mediating role of academic self-regulation style (ASRS; i.e. a macro level of motivation) on learning. This research was performed to gain more insight in the conditions under which learning in hypermedia environments is effective. Sixty-nine grade five students from a primary school answered short essay questions using video material from a hypermedia environment. The effects on task motivation and test performance were measured. It was found that learners in the autonomy supported hypermedia environment reported lower levels of controlled task motivation, compared to the learners in the system-controlled and learner-controlled hypermedia environments. But there were no effects of hypermedia environment on autonomous task motivation or the reported need fulfilment for autonomy. Furthermore, learners in the learner-controlled hypermedia environment scored lower on a delayed, In-Depth Knowledge Test compared to learners in the other two environments. Moreover, learners in the autonomy supported hypermedia environment watched more (unique) videos compared to learners in the system-controlled and the learner-controlled hypermedia environments. As for the role of learners' ASRS, we found no interaction with the type of hypermedia environment on task motivation or performance. Learners' ASRS did, however, affect the learners' motivation for the task. And, when presented with advice (as in the autonomy supported hypermedia environment) learners with an autonomous self-regulation style followed more advice, compared to learners with a more controlled self-regulation style.     

A design framework for educational hypermedia systems: theory, research, and learning emerging scientific conceptual perspectives

This paper focuses on theory and research issues associated with the use of hypermedia technologies in education. It is proposed that viewing hypermedia technologies as an enabling infrastructure for tools to support learning—in particular learning in problem-based pedagogical environments involving cases—has particular promise. After considering research issues with problem-based learning related to knowledge transfer and conceptual change, a design framework is discussed for a hypermedia system with scaffolding features intended to support and enhance problem-based learning with cases. Preliminary results are reported of research involving a new version of this hypermedia design approach with special ontological scaffolding to explore conceptual change and far knowledge transfer issues related to learning advanced scientific knowledge involving complex systems as well as the use of the system in a graduate seminar class. Overall, it is hoped that this program of research will stimulate further work on learning and cognitive sciences theoretical and research issues, on the characteristics of design features for robust and educationally powerful hypermedia systems, on ways that hypermedia systems might be used to support innovative pedagogical approaches being used in the schools, and on how particular designs for learning technologies might foster learning of conceptually difficult knowledge and skills that are increasingly necessary in the 21st century.

Information,Instruction, and Learning: A Hypermedia Perspective

Hypermedia as defined by Osgood (1987) is a tool for linking nonlinear information presented in the form of graphics, animation, video, and sound. One important question for instructional designers regarding hypermedia is how it can be used as an instructional or learning tool that enhances rather than inhibits learning. Creating hypermedia applications is a quick and easy alternative to creating courseware with older authoring systems and languages which took many hours to learn. This ease of application creation, combined with a tremendous increase in information available to our society, has resulted in a proliferation of hypermedia databases in school, university, and industry settings that is gradually moving into homes. Many of these databases are simply information media. This paper identifies important issues related to classifying a hypermedia–based information system appropriately. Based on a discussion of these issues, a call for systematic research which clarifies the role that hypermedia–based information systems can and should play in an instructional or learning environment is set forth.     

浅谈化学教学中学生创造性思维能力的培养

化学教师除课堂教学、实验教学与作相应练习外，在教学中应开发创造性因素，实现培养学生创造性思维的目的。     

A Review of Solution Chemistry Studies: Insights into Students’ Conceptions

This study has reviewed the last two decades of student conception research in solution chemistry pertaining to aims, methods of exploring students conception, general knowledge claims, students conceptions and difficulties, and conceptual change studies. The aims of solution chemistry studies have been to assess students understanding level of solution chemistry and in some studies compare understanding based on age and year at school or college. The methods of exploring students conceptions consisted of interviews, paper and pencil surveys (open-ended questions and multiple-choice questions), free writing and drawings and the validity of these methods have been highlighted. The general knowledge claims synthesized in this study are students (a) attending to mechanical events, (b) preference for everyday language usage over chemical language, (c) confusing solution chemistry with non-related concepts, (d) lack of sub-microscopic explanation for macroscopic observation, (e) difficulty with visualizing and representing sub-microscopic ideas, (f) difficulty with symbolic representations, (g) inconsistent explanations, (h) development of student understanding with age, and (i) development of conservation reasoning with age. To incorporate students conceptions, conceptual change studies have used strategies such as worksheet, analogy, collaboratively working with a teacher, hypermedia, and group exploration. The results of conceptual change studies generally have had a positive impact enabling students to consider their ideas and develop plausible models of solution chemistry. For improvement of student learning in chemistry, this review of solution chemistry studies sheds light on teacher thinking and capacity building with respect to explicitly incorporating students conceptions into chemistry curriculum; practicing research-based strategies; forging links among types of chemical knowledge; collaborating for experimental teaching; and conducting further research.     

大学生学习心理对高校学风建设的影响与对策

主要探讨大学生学习心理对高校学风建设的影响.认为高校要从激发学习动力、转变教育观念、营造育人环境、帮助大学生增强自我防护意识和加强学习心理辅导等方面下功夫,培养大学生健康的学习心理,加强学风建设.     

Ways of Coming to Understand: metacognitive awareness among first‐year university students

This paper presents a phenomenographic study of conceptions of how understanding comes about. In‐depth interviews with 30 first‐year university students were carried out, dealing with questions about learning, understanding and knowledge. The analysis presented here focuses on the experience of how understanding arises. The subjects came from teacher education, cultural studies and chemistry economics. Data were analysed according to phenomenographic principles. Three main categories of conceptions were found: coming to understand by (1) experiences, (2) mental construction and (3) merging with reality. The order of the categories is interpreted as a progression in ‘metacognitive awareness’. The results are compared with other phenomenographic studies of conceptions of understanding. Finally, they are related to constructivist models of learning and some philosophical views. It is suggested that such a recontextualisation of students’ conceptions can be made part of the curriculum in order to stimulate a ‘deep approach’ to study and learning.     

浅谈化学教学中学生学习兴趣的培养

兴趣是最直接的学习动力，教师在教学过程中应注重激发和培养学生的学习兴趣。本文从重视化学实验的教学、设置悬念、创造愉快的学习情境、联系生活的实践、利用成功五个方面来论述兴趣的培养。     

Students' conceptions of learning in an engineering context

Research on student learning in higher education has highlighted the central role that students' conceptions of learning play in influencing their approaches to learning. This article reports on a study of conceptions of learning among engineering students on a one-year foundation course. Students were interviewed about their conceptions of learning at three intervals during their academic year. The data was analysed using a phenomenographic perspective and from the data five qualitatively different conceptions of learning were identified. The resulting characterisation of these conceptions of learning is presented using excerpts from the interviews and some implications for student learning are discussed.     

EIKON: Teaching a high-school technology course with the aid of virtual reality

This paper presents EIKON, an integrated open educational environment used to support high-school technology courses. EIKON combines state-of-the-art information technologies, such as virtual reality, hypermedia and networking. Our pedagogical approach is constructivism and collaborative learning. Students using EIKON study the evolution of agricultural technology since the prehistoric times. The environment could be used as a starting point for the exploration of virtual reality microworlds and the discovery of multidisciplinary information, which relates to most of the courses taught in modern high-schools (history, geography, physics, chemistry, biology, environmental care, ecological awareness etc). A case study with a sample of nineteen information technology high-school teachers reports on content, pedagogical, and software quality issues. The results indicate competence of multimedia information, very good instructional design, and very good software quality. Especially for virtual environments, all the teachers declared ease of orientation, but only the 26.3% declared ease in navigation using the navigation controls provided by the software.