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1.
Srisawasdi Niwat Panjaburee Patcharin 《Journal of Science Education and Technology》2019,28(2):152-164
Many studies have used the potential of computer games to promote students’ attitudes toward learning and increase their learning performance. A few studies have transformed scientific content into computer games or developed games with scientific content. In this paper, we employed students’ common misconceptions of chemistry regarding the properties of liquid to develop a computer game. Daily life situations and everyday phenomena related to the chemical understanding of the properties of liquid were also taken into account. Afterward, we applied a process-oriented, inquiry-based active learning approach to implement the game in a Thai high school chemistry course. We studied the implementation of a game-transformed inquiry-based learning class by comparing it to a conventional inquiry-based learning class. The results of this study include aspects of students’ conceptual understanding of chemistry and their motivation to learn chemistry. We found that students in both the game-transformed inquiry-based learning class and conventional inquiry-based learning class had a significantly increased conceptual understanding of chemistry. There was also a significant difference between the gains of both classes between the pre- and post-conceptual understanding scores. Moreover, the post-conceptual understanding scores of students in the two classes were significantly different. These findings support the notion that students can better comprehend chemistry concepts through a computer game, especially when integrated with the process-oriented, inquiry-based learning approach. The findings of this study also highlight the game-transformed inquiry-based learning approach’s support of students’ motivation to learn chemistry.
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Keating Thomas Barnett Michael Barab Sasha A. Hay Kenneth E. 《Journal of Science Education and Technology》2002,11(3):261-275
The Virtual Solar System (VSS) course described in this paper is one of the first attempts to integrate three-dimensional (3D) computer modeling as a central component of an introductory undergraduate astronomy course. Specifically, this study assessed the changes in undergraduate university students' understanding of astronomy concepts as a result of participating in an experimental introductory astronomy course in which the students constructed 3D models of different astronomical phenomena. In this study, we examined students' conceptual understanding concerning three foundational astronomical phenomena: the causes of lunar and solar eclipses, the causes of the Moon's phases, and the reasons for the Earth's seasons. Student interviews conducted prior to the course identified a range of student alternative conceptions previously identified in the literature regarding the dynamics and mechanics of the Solar System. A previously undocumented alternative conception to explain lunar eclipses is identified in this paper. The interviews were repeated at the end of the course in order to quantitatively and qualitatively assess any changes in student conceptual understanding. Generally, the results of this study revealed that 3D computer modeling can be a powerful tool in supporting student conceptualization of abstract scientific phenomena. Specifically, 3D computer modeling afforded students the ability to visualize abstract 3D concepts such as the line of nodes and transform them into conceptual tools, which in turn, supported the development of scientifically sophisticated conceptual understandings of many basic astronomical topics. However, there were instances where students' conceptual understanding was incomplete and frequently hybridized with their existing conceptions. These findings have significant bearing on when and in what domains 3D computer modeling can be used to support student conceptual understanding of astronomy concepts. 相似文献
4.
Erik McKee Vickie M. Williamson Laura E. Ruebush 《Journal of Science Education and Technology》2007,16(5):395-400
Laboratory and demonstration have long been used to supplement lecture in chemistry education. Current research indicates
that students are better served by laboratories which exercise the higher-order cognitive skills, such as inquiry-based laboratories.
However, the time and the resources available to perform these recommended types of laboratories are continually shrinking.
Due to these factors, a demonstration-laboratory was designed to allow students to make observations through demonstration
rather then through hands-on laboratory. For this study, the hands-on procedures of an inquiry style laboratory were replaced
by an instructor demonstration of these same procedures. A significant difference was found between student conceptual understanding
before and after the experiment, indicating that students performing the laboratory experiment and students viewing the demonstration-laboratory
had an increase in conceptual understanding. However, no significant difference was found between the conceptual understanding
of the two groups after the experiment, indicating that students learn roughly the same from both methods and that the demonstration-laboratory
at least does no harm to the students conceptually. Long-term effects on student understanding were not measured. Student
opinions comparing the demonstration laboratory to a hands-on laboratory were also collected and analyzed. 相似文献
5.
Evidence of a gap in student understanding has been well documented in chemistry: the typical student holds an abundance of misconceptions. The current expectation is that educational reform will foster greater student achievement via inquiry teaching within classrooms. Using assessments involving both conceptual and algorithmic knowledge of gas behaviour, gas laws, and phase changes in chemistry, this study aims to determine the relationship between inquiry teaching and student achievement. The topics were tested in the context of a unit from a reform‐based curriculum that features inquiry, hands‐on activities, and cooperative learning. This curriculum provides step‐by‐step guidance for each lesson in the teacher materials, in order to promote quality inquiry teaching. Two schools were involved in this study, with two high school chemistry teachers from each school. Each teacher participated in professional development and implemented this curriculum with sufficient training and guidance to develop reform methods. Student achievement was found to positively correlate with the use of inquiry teaching about the assessed concepts, regardless of teacher experience or school context. 相似文献
6.
Habraken Clarisse L. Buijs Wim Borkent Hens Ligeon Willy Wender Harry Meijer Marijn 《Journal of Science Education and Technology》2001,10(3):249-256
This report describes a study which explores, from the out-of-school student viewpoint, why students are not studying chemistry anymore. In a 2-day stay at a research institution three groups of graduating high school students from different schools, together with their chemistry teacher, were confronted hands-on with molecular modeling in industry and in university. Each of these volunteer students had agreed to write an essay on School Chemistry Vs. Chemistry in Research. These essays were evaluated together by the students, the teacher, and the researcher in a meeting at their school. The opinion of the students show that school chemistry does not convey today's chemistry in research and in industry. At the computer screen the students demonstrated their skill in performing molecular modeling experiments. Moreover, at the computer screen, chemistry was fun and easier to understand. Now we begin to see the solution: our students are also our teachers. 相似文献
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Understanding scientific concepts is a fundamental aim of science education. Conceptual understanding can be fostered through inquiry learning with experiments. However, during the Covid-19 pandemic school closures hands-on experiments could hardly be realized. Fortunately, digital technologies allow for conducting experiments virtually by using interactive simulations or observing video recordings of hands-on experiments. In the present study, 154 seventh graders in remote schooling were involved in inquiry learning using either a combination of virtual and video experiments in two different orders or only virtual experiments. We hypothesized that in general inquiry learning fosters students' conceptual understanding in physics, which could be confirmed. Moreover, we expected the combinations to be more effective than learning with virtual experiments only due to the complementary roles of the prior, which was, however, not the case. We conclude that virtual and video experiments can be recommended to teachers if hands-on experimentation is not possible. 相似文献
8.
Yehudit Judy Dori Shirly Avargil Zehavit Kohen Liora Saar 《International Journal of Science Education》2018,40(10):1198-1220
ABSTRACTContext-based learning (CBL), promoting students' scientific text comprehension, and fostering metacognitive skills, plays an important role in science education. Our study involves CBL through comprehension and analysis of adapted scientific articles. We developed a module which integrates metacognitive prompts for guiding students to monitor their understanding and improve their scientific text comprehension. We investigated the effect of these metacognitive prompts on scientific text comprehension as part of CBL in chemistry. About 670 high school chemistry students were randomly divided into three groups exposed to high- and low-intensity CBL. One of the high-intensity groups was also exposed to metacognitive prompts. Research tools included pre- and post-questionnaires aimed at measuring students' conceptual chemistry understanding and metacognitive knowledge in the context of reading strategies, before and after exposure to the CBL. Chemistry understanding was reflected by students' ability to identify the main subject of the adapted article and by explaining concepts both textually and visually. We found that high-intensity CBL combined with metacognitive prompts improved students' chemistry understanding of the adapted scientific articles and the ability to regulate their learning. Our study establishes that reading context-based adapted scientific articles advances students' conceptual chemistry understanding. These gains are strongly amplified by domain-specific metacognitive prompts. 相似文献
9.
Olia E. Tsivitanidou Costas P. Constantinou Peter Labudde Silke Rönnebeck Mathias Ropohl 《European Journal of Psychology of Education - EJPE》2018,33(1):51-73
The aim of this study was to investigate how reciprocal peer assessment in modeling-based learning can serve as a learning tool for secondary school learners in a physics course. The participants were 22 upper secondary school students from a gymnasium in Switzerland. They were asked to model additive and subtractive color mixing in groups of two, after having completed hands-on experiments in the laboratory. Then, they submitted their models and anonymously assessed the model of another peer group. The students were given a four-point rating scale with pre-specified assessment criteria, while enacting the peer-assessor role. After implementation of the peer assessment, students, as peer assessees, were allowed to revise their models. They were also asked to complete a short questionnaire, reflecting on their revisions. Data were collected by (i) peer-feedback reports, (ii) students’ initial and revised models, (iii) post-instructional interviews with students, and (iv) students’ responses to open-ended questions. The data were analyzed qualitatively and then quantitatively. The results revealed that, after enactment of the peer assessment, students’ revisions of their models reflected a higher level of attainment toward their model-construction practices and a better conceptual understanding of additive and subtractive color mixing. The findings of this study suggest that reciprocal peer assessment, in which students experience both the role of assessor and assessee, facilitates students’ learning in science. Based on our findings, further research directions are suggested with respect to novel approaches to peer assessment for developing students’ modeling competence in science learning. 相似文献
10.
High-School Chemistry Students' Performance and Gender Differences in a Computerized Molecular Modeling Learning Environment 总被引：1，自引：1，他引：0
Computerized molecular modeling (CMM) contributes to the development of visualization skills via vivid animation of three dimensional representations. Its power to illustrate and explore phenomena in chemistry teaching stems from the convenience and simplicity of building molecules of any size and color in a number of presentation styles. A new CMM-based learning environment for teaching and learning chemistry in Israeli high schools has been designed and implemented. Three tenth grade experimental classes used this discovery CMM approach, while two other classes, who studied the same topic in the customary approach, served as a control group. We investigated the effects of using molecular modeling on students' spatial ability, understanding of new concepts related to geometric and symbolic representations and students' perception of the model concept. Each variable was examined for gender differences. Students of the experimental group performed better than control group students in all three performance aspects. Experimental group students scored higher than the control group students in the achievement test on structure and bonding. Students' spatial ability improved in both groups, but students from the experimental group scored higher. For the average students in the two groups the improvement in all three spatial ability sub-tests —paper folding, card rotation, and cube comparison—was significantly higher for the experimental group. Experimental group students gained better insight into the model concept than the control group and could explain more phenomena with the aid of a variety of models. Hence, CMM helps in particular to improve the examined cognitive aspects of the average student population. In most of the achievement and spatial ability tests no significant differences between the genders were found, but in some aspects of model perception and verbal argumentation differences still exist. Experimental group females improved their model perception more than the control group females in understanding ways to create models and in the role of models as mental structures and prediction tools. Teachers' and students' feedback on the CMM learning environment was found to be positive, as it helped them understand concepts in molecular geometry and bonding. The results of this study suggest that teaching/learning of topics in chemistry that are related to three dimensional structures can be improved by using a discovery approach in a computerized learning environment. 相似文献
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Several researchers have suggested that the computer holds much promise as a tool for science teachers for use in their classrooms (Bork, 1979, Lunetta & Hofstein, 1981). It also has been said that there needs to be more research in determining the effectiveness of computer software (Tinker, 1983). This study compared the effectiveness of microcomputer simulated experiences with that of parallel instruction involving hands-on laboratory experiences for teaching the concept of volume displacement to junior high school students. This study also assessed the differential effect on students' understanding of the volume displacement concept using sex of the students as another independent variable. In addition, it compared the degree of retention, after 45 days, of both treatment groups. It was found that computer simulated experiences were as effective as hands-on laboratory experiences, and that males, having had hands-on laboratory experiences, performed better on the posttest than females having had the hands-on laboratory experiences. There were no significant differences in performance when comparing males with females using the computer simulation in the learning of the displacement concept. This study also showed that there were no significant differences in the retention levels when the retention scores of the computer simulation groups were compared to those that had the hands-on laboratory experiences. However, an ANOVA of the retention test scores revealed that males in both treatment conditions retained knowledge of volume displacement better than females. 相似文献
13.
In a series of three experimental studies, the effectiveness of three-dimensional computer simulations to aid the understanding
of chemical structures and their properties was investigated. Arguments for the usefulness of three-dimensional simulations
were derived from Mayer’s generative theory of multimedia learning. Simulations might lead to a decrease in cognitive load
and thus support active learning. In our studies, the learning effectiveness of three-dimensional simulations was compared
to two-dimensional illustrations by use of different versions of a computer programme concerning the modifications of carbon.
The first and third study with freshman students of chemistry and biochemistry show that no more knowledge was acquired when
participants learnt with three-dimensional simulations than with two-dimensional figures. In the second study with 16-year
old secondary school students, use of simulations facilitated the acquisition of conceptual knowledge. It was concluded that
three-dimensional simulations are more effective for younger students who lack the experience of learning with different visual
representation formats in chemistry. In all three studies, a significant relationship between spatial ability and conceptual
knowledge about the modifications of carbon was detected. 相似文献
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培养学生的创造能力是中学化学教学研究中的一个重要课题。本文结合中学化学课堂教学的实际 ,从营造良好的教学氛围、传授科学的思考方法、激发创造性想象、发展创造性思维和训练创造性实验技能等方面谈了粗浅的认识 相似文献
16.
ABSTRACT: Student achievement, attitude, and instructional efficiency were determined for hands-on and for live and videotape demonstration laboratories for nonscience majors. Each of 3 laboratory sections experienced 3 different teaching methods for one 4-wk unit. No significant difference in achievement was found among the laboratory methods. An attitude survey indicated a significant positive change in attitude toward live demonstration, with a negative change toward the hands-on and videotape methods. Videotape demonstration was the most economical method based on monetary and time expenditures, followed by live demonstration. Findings support using a variety of laboratory teaching methods, with the particular method based on appropriateness to students' learning needs; particular information, lesson, or unit of study taught; and instructional purpose. 相似文献
17.
化学是一门实践性很强的科学 .作者充分运用学科特点 ,在传授知识的同时 ,通过多种渠道培养学生的科学知识、科学方法和创新能力 ,为中师化学素质教育提供了一个范例 相似文献
18.
《Contemporary educational psychology》2014,39(2):164-174
This study explored how confidence in prior knowledge, self-efficacy, interest, and prior knowledge interact in conceptual change learning. One hundred and sixteen college students completed an assessment of confidence in prior knowledge, self-efficacy, interest, prior scientific understanding, and prior misconceptions before reading a refutation text on seasonal change. Students’ misconceptions and scientific understanding of seasonal change was then assessed before and after reading a refutation text, and again at a two week delayed posttest. Three profiles of students emerged based on their confidence in prior knowledge, self-efficacy, interest, prior scientific understanding, and prior misconceptions. The profiles included: (1) Low (low confidence, self-efficacy, interest, and prior scientific understanding and high prior misconceptions), (2) mixed (high confidence, self-efficacy, and interest, but low prior scientific understanding and high prior misconceptions), and (3) high (high confidence, self-efficacy, interest, and prior scientific understanding and low prior misconceptions). Results indicated that the mixed profile appeared to be most productive for conceptual change and that learner characteristics most productive for conceptual change learning may differ from those most productive in other learning situations. 相似文献
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This study examined the cognition of five pairs of high school students over time as they built quantitative ecological models using STELLA software. One pair of students emerged as being particularly proficient at learning to model, and was able to use models productively to explore and explain ecological system behaviors. We present detailed contrasts between this and the other pairs of students' cognitive behaviors while modeling, in three areas that were crucial to their modeling productivity: (a) focusing on model output and net interactions versus on model input and individual relationships when building and revising models, (b) exploring the nature and implications of dependencies and feedbacks versus just creating these as properties of complex systems, and (c) using variables versus constants to represent continuous and periodic functions. We then apply theories of the multifaceted nature of cognition to describe object-level, metalevel, and emotional dimensions of cognitive performance that help to explain the observed differences among students' approaches to STELLA modeling. Finally, we suggest pedagogical strategies for supporting all types of students in learning the central scientific practice of model-based quantitative thinking. 相似文献