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1.
Like their students, teachers may hold a variety of naïve conceptions that have been hypothesized to limit their ability to support students’ learning. This study examines whether changes in elementary students’ conceptions are related to their teachers’ content knowledge, attitudes, and understanding of conceptual change. The study takes place in the context of the adoption of a new unit on seasonal change in which students build and use sundials to observe seasonal differences in the apparent motion of the Sun across the sky. A mixed-method approach is used. Data sources include pre- and post-tests for students and teacher interviews and questionnaires. Results indicate that changes in students’ conceptions may be related to their teachers’ knowledge of the content, attitudes toward science, and understanding of conceptual change. One teacher had low attitude toward science and limited knowledge of conceptual change. After instruction, her students’ responses became less accurate but more homogeneous than before instruction. The other teacher had high attitude and moderate knowledge of conceptual change. Her students showed gains from pre- to post-test, including responses that were more scientifically accurate than the teachers’ initial answers.  相似文献   

2.
The aim of this study is to compare the effectiveness of conceptual change text instruction (CCT) in the context of energy in chemical reactions. The subjects of the study were 60, 10th grade students at a high school, who were in two different classes and taught by the same teacher. One of the classes was randomly selected as the experimental group in which CCT instruction was applied, and the other as the control group in which traditional teaching method was used. The data were obtained through the use of Energy Concept Test (ECT), the Attitude Scale towards Chemistry (ASC) and Science Process Skill Test (SPST). In order to find out the effect of the conceptual change text on students’ learning of energy concept, independent sample t-tests, ANCOVA (analysis of covariance) and ANOVA (analysis of variance) were used. Results revealed that there was a statistically significant mean difference between the experimental and control group in terms of students’ ECT total mean scores; however, there was no statistically significant difference between the experimental and control group in terms of students’ attitude towards chemistry. These findings suggest that conceptual change text instruction enhances the understanding and achievement.  相似文献   

3.
The purpose of this study was to investigate whether conceptual change texts and laboratory experiments are effective in overcoming misconceptions and whether the concepts were acquired permanently when these methods were utilized. In this study, we addressed some topics from the “Matter and Change” unit in science and technology class of elementary 4th grade. Students from three classes of an elementary school participated in the study (N = 104). Students’ misconceptions were determined by administering the “Matter Concept Test” before, immediately after and 13 weeks after the instructional period. The results of the study showed that both conceptual change texts and experiment method were more successful than traditional instruction in overcoming the misconceptions and acquiring permanent knowledge. However, there was not a significant difference between these two alternative approaches in terms of reducing the misconceptions.  相似文献   

4.
This study attempted to investigate the alternative conceptions that a group of 12 Lebanese students in a grade 9 class hold about electricity. It also attempted to evaluate learning outcomes of implementing in that class an inquiry-based module for the acquisition of conceptual understanding of basic concepts in electricity. Fourteen mostly subjective tests were administered throughout the implementation phase of the inquiry-based module to assess the evolution of participants’ conceptions. The instrument DIRECT (Version 1.0) focusing on conceptual understanding was used as a post-instructional test to measure acquisition of understanding. The findings revealed that most of the alternative conceptions reported in literature were found amongst the participants. Results of the post-testing showed that the implemented inquiry-based approach was successful in enhancing participants’ conceptual understanding of the targeted DC circuit concepts.  相似文献   

5.
The main purpose of this study was to investigate the effects of cooperative learning based on conceptual change approach instruction on ninth-grade students’ understanding in chemical bonding concepts compared to traditional instruction. Seventy-two ninth-grade students from two intact chemistry classes taught by the same teacher in a public high school participated in the study. The classes were randomly assigned as the experimental and control group. The control group (N?=?35) was taught by traditional instruction while the experimental group (N?=?37) was taught cooperative learning based on conceptual change approach instruction. Chemical Bonding Concept Test (CBCT) was used as pre- and post-test to define students’ understanding of chemical bonding concepts. After treatment, students’ interviews were conducted to observe more information about their responses. Moreover, students from experimental groups were interviewed to obtain information about students’ perceptions on cooperative work experiences. The results from ANCOVA showed that cooperative learning based on conceptual change approach instruction led to better acquisition of scientific conceptions related to chemical bonding concepts than traditional instruction. Interview results demonstrated that the students in the experimental group had better understanding and fewer misconceptions in chemical bonding concepts than those in the control group. Moreover, interviews about treatment indicated that this treatment helped students’ learning and increased their learning motivation and their social skills.  相似文献   

6.
This paper is subdivided into two sections: In Part I empirical results of students epistemological conceptions of laws, hypotheses, theories, and models are presented as well as their ideas of the pathway of scientific discovery. These results are discussed in relation to research results of different recent publications. In Part II an outline and analysis of a two-year program for explicitly teaching epistemology in a physics course (grade 11-13) is given.  相似文献   

7.
This article reports research from a 3 year digital learning project to unite conceptual change and scientific reasoning in the learning unit of combustion. One group of students had completed the course combining conceptual change and scientific reasoning. The other group of students received conventional instruction. In addition to the quantitative data, six students from each group were interviewed to evaluate their conceptual change, correct concepts and scientific reasoning. Results indicate that the experimental group’s students significantly outperformed the conventional group on the Combustion Achievement Test (CAT), Scientific Reasoning Test (SRT) and Combustion Dependent Reasoning Test (CDRT). Moreover, the experimental group’s students use higher levels of scientific reasoning more frequently and changed their alternative concepts more successfully than did the conventional group. Furthermore, once the experimental group’s students’ successfully changed their conceptions, their concepts tended to be more stable than the conventional group’s students, even after the 6th week of learning. These results demonstrate that combining conceptual change and scientific reasoning indeed improves students’ conceptual change and scientific reasoning ability more effectively than conventional instruction.  相似文献   

8.
ABSTRACT

Three thousand, one hundred sixty students involved in online instruction at 31 colleges and universities across the United States completed a survey designed to probe into whether statements derived from 8 standards in the Quality MattersTM (QM) rubric contributed to their success. The 43-item survey instrument measured students’ perceptions of online course quality. The effect of age and employment status on their perceptions was measured. Based on a series of ANOVA (analysis of variance)s, it was found that the highest rated standard was QM3 on Assessment and Measurement. There were significant differences between age groups. Students under 45, contrasted to those over 45, highly valued clarity and appropriateness of assessments and clear criteria for grading. For students above the age of 45, QM6 on Course Technology was valued highest. They placed a high value on the tools and media that support learning objectives and classmate interactivity. QM3 was rated highest across all employment groups—those employed part-time, full-time, and those who were unemployed. Standards 1 (Course Overview and Introduction), 2 (Learning Objectives), 4 (Resources and Materials), and 7 (Learner Support) were valued higher by students working full-time and those who were unemployed compared with those working part-time. It is likely that students who work part-time are not as focused on academics as are those who do not work. They may not be as motivated to perform well as students who work full-time. Implications for course designers and instructors are discussed.  相似文献   

9.
The reasoning belief of argumentum ad nauseam assumes that when someone repeats something often enough, he or she becomes more convincing. The present paper analyses the use of this strategy by seventh-grade students in an argumentation task. Sixty-five students (mean age: 12.2, SD?=?0.4) from a public school in a mid-sized urban environment took part in the study. The students were asked to either argue to convince an opposing partner or argue to reach consensus with an opposing partner on three dilemmas that dealt with energy sources. Data were gathered according to a between-groups design that included one independent variable (argumentative goal: to convince vs. to reach consensus) and one dependent variable (the degree of argumentative repetitions). We predicted that in the condition to convince their partner, the students would use the repetition strategy more often in their attempts to be persuasive. Our findings show that the mean number of argumentative repetitions was significantly higher for the persuasion group for both of the most frequent argumentative structures (claim and claim data). The mean percentage of repeated claims for the persuasion condition was 86.2 vs. 69.0 for the consensus condition. For the claim data, the mean percentage for the persuasion group was 35.2 vs. 24.3 for the consensus group. Also, students in the persuasion group tended to repeat one idea many times rather than repeating many ideas a few times within the same argumentative structure. The results of our study support the hypothesis that the goal of the argumentative task mediates argumentative discourse and, more concretely, the rate of repetitions and the conceptual diversity of the statements. These differences in rates of repetition and conceptual diversity are related to the amount of learning produced by the instructional goal. We apply Mercer's idea that not all classroom argumentation tasks promote learning equally.  相似文献   

10.
Capitalizing on the comments made by teachers on videos of exemplary science teaching, a video-based survey instrument on the topic of ‘Density’ was developed and used to investigate the conceptions of good science teaching held by 110 teachers and 4,024 year 7 students in Hong Kong. Six dimensions of good science teaching are identified from the 55-item questionnaire, namely, ‘focussing on science learning’, ‘facilitating students’ understanding’, ‘encouraging students’ involvement’, ‘creating conducive environment’, ‘encouraging active experimentation’ and ‘preparing students for exam (PSE)’. Significant gaps between teachers’ and students’ conceptions on certain dimensions have been revealed. The inconsistency on the dimension ‘PSE’ is particularly evident and possible reasons for the phenomenon are suggested. This study raises the important questions of how the gap can be addressed, and who is to change in order to close the gaps. Answers to these questions have huge implications for teacher education and teacher professional development.  相似文献   

11.
This study investigated the effect of non-traditional guided inquiry instruction on middle school students’ conceptual understandings of lunar concepts. Multiple data sources were used to describe participants’ conceptions of lunar phases and their cause, including drawings, interviews, and a lunar shapes card sort. The data were analyzed via a constant comparative method to produce profiles of each participant’s conceptual understandings and nonparametric tests also were used. Results revealed very positive performance for observable moon phases and patterns of change, as well as the cause of moon phases. Results indicated that significantly more participants shifted from drawing nonscientific shapes on the pretest to drawing scientific shapes on the post-test. Results for the drawings of moon phase sequences were similar in that significantly more participants shifted from drawing alternative waxing and waning sequences on the pretest to drawing scientific sequences on the post-test. Also, significantly more participants shifted from alternative understanding of the cause of the moon phases on the pretest to scientific understanding on the post-test. Implications of these findings and recommendations for further research are provided.  相似文献   

12.
Climate change science is a challenging topic for student learning. This quantitative study examined the effectiveness of a geospatial curriculum approach to promote climate change science understandings in an urban school district with eighth-grade students and investigated whether teacher- and student-level factors accounted for students’ climate change knowledge achievement. The participants included 12 science teachers and 956 eighth-grade students. Data included a pre- and posttest climate change assessment measures for both teachers and students and a teacher measure of Geospatial Science-Technological Pedagogical Content Knowledge. Paired-sample t tests revealed statistically significant gains from pretest to posttest on their climate change knowledge (p < .001; effect sizes being large on multiple-choice items and medium on the open-ended response assessment). Both ordinary least squares (OLS) multiple regression and 2-level hierarchical linear modeling found that students’ initial climate change knowledge and gender were significant predictors for students’ posttest scores, p < .05. Students’ pretest scores were the strongest significant predictor of the posttest scores, p < .001. Neither the teachers’ climate change knowledge nor their Geospatial Science-Technological Pedagogical Content Knowledge had significant association with the students’ posttest scores. Teaching years was a significant predictor for students’ posttest scores in OLS regression (p < .001). The findings provide support that a geospatial curriculum approach is an effective science curriculum approach for learners in urban middle-level education.  相似文献   

13.
Abstract

This study sets out to explore and model selected aspects of the approaches to, and conceptions of, learning by Indonesian postgraduate students. Meyer's Experiences of Learning Inventory was administered to 105 postgraduate students at the University of Indonesia in 1995. In 1996, Meyer and Boulton‐Lewis's Reflections on Learning Inventory was administered to a separate group of 94 postgraduate students studying at the same University. An initial finding is that, for a Javanese subgroup of responses, some established operationalised constructs collectively associated with a broader ‘meaning orientation’ to learning, in particular a ‘deep approach’, exhibit low values of internal consistency (alphas between 0.18 and 0.51; ‘deep approach'= 0.28). In contrast, non‐Javanese responses exhibit acceptably higher values of internal consistency (alphas between 0.54 and 0.76; ‘deep approach’ = 0.60). Further contrasts between these two subgroups emerge in terms of exploratory factor structures (of conceptions of learning and related effects). It is argued that an understanding of variation in students’ conceptions of learning, and the influence of these conceptions on the experiences of postgraduate students, can assist supervisors and support staff to better assist them during their candidature. Such assistance, while being important for local postgraduate students, takes on an added dimension when students and supervisors are working within a cross‐cultural setting.  相似文献   

14.
The purpose of this study is to investigate the effect of computer-assisted learning integrated with metacognitive prompts on elementary students’ affective skills on the subject of electricity. The researchers developed educational software to enable students to easily and comprehensively learn the concepts in the subject of electricity. A case study method was used. Eighteen students from the seventh grade (12–13 years) participated in the study. Students’ views on their performances while using educational software and the impact of the software on their affective skills towards the subject of electricity were examined. Data were collected by open-ended questions in the educational software. According to the research results, there were students who had negative attitudes and perceptions before starting to learn about the subject of electricity. Interactive activities, animations, and visual experiments in the educational software were effective in overcoming the students’ negative attitudes and perceptions about the subject. Besides, students who assessed their own performances during the learning process believed themselves to be more successful over time. In the light of the research results, some suggestions are made for future studies.  相似文献   

15.
16.
Journal of Science Education and Technology - The development of STEAM (Science, Technology, Engineering, Liberal Arts, and Mathematics) curricula has emerged in the past decade. A pedagogical...  相似文献   

17.
Traditional multiple-choice concept inventories measure students?? critical conceptual understanding and are designed to reveal students?? na?ve or alternate ideas. The overall scores, however, give little information about the state of students?? knowledge and the consistency of reasoning. This study investigates whether students have consistent alternate models when reasoning about Newton??s third law principle in the context of electromagnetics (EM), and whether these possible models are related to conceptual change and overall performance. Students?? conceptual understanding is evaluated with The Conceptual Survey of Electricity and Magnetism (CSEM) multiple-choice test. The data (N?=?118) are collected from an undergraduate static field theory course at the Helsinki University of Technology, Finland. The data are analysed using frequency distributions, Fisher??s exact test, and One-Way ANOVA analysis. The study shows that every fifth student has a consistent or partially consistent alternate model of Newton??s third law principle in the context of EM prior to instruction. Students with this alternate model perform significantly (p?=?0.01) better on the overall concept test and are more likely to change conceptual understanding towards a correct model compared to students in an inconsistent mixed model state.  相似文献   

18.
This research investigates the effect of classroom explicitation of initial conceptions (CEIC) on conceptual change in the context of learning electricity. Eight hundred and seventy five thirteen year-olds were tested in laboratory conditions to see if CEIC is or is not a productive step toward conceptual change. All students experienced a problem-based pedagogical treatment called “the electronic challenge.” The randomly determined experimental group was also exposed to CEIC. Data shows a significant beneficial effect of CEIC and no unwanted “contamination effect”, particularly for female subjects.  相似文献   

19.
In this study, we investigated distinctions among the diversity of religious traditions represented by Lebanese and Egyptian Muslim high school students regarding their understanding and acceptance of biological evolution and how they relate the science to their religious beliefs. We explored secondary students’ conceptions of evolution among members of three Muslim sects—Sunni, Shiite, and Druze—in two cultural contexts; one in which the overwhelming majority of the population is Muslim (Egypt) and another in which there is a sizable Christian community (Lebanon). Data were collected via surveys that examined students’ scientific and religious understandings of evolution among 162 Egyptian students (all Sunni Muslims; 63% females and 37% males) and 629 Lebanese students (38.5% Sunni, 38% Shiite, and 23.5% Druze; 49% females and 51% males). Additional data were collected via semi-structured interviews with 30 Lebanese students to allow triangulation of data for accuracy and authenticity. Results indicate that many Egyptian and Lebanese Muslim students have misconceptions about evolution and the nature of science which often lead to rejection of evolution. Also, Lebanese Sunni and Shiite students and Egyptian Sunni students tend to exhibit high levels of religiosity, and these students report that their religious beliefs influence their positions regarding evolution. Finally, Sunni and Shiite Lebanese students have religious beliefs, conceptions of evolution, and positions regarding evolution similar to those of Sunni Egyptian students. These conceptions and positions, however, are substantially different from those of Druze Lebanese students.  相似文献   

20.
This is the final paper in a five-paper series describing our national study of the teaching and learning of cosmology in general education astronomy college-level courses. A significant portion of this work was dedicated to the development of five new Lecture-Tutorials that focus on addressing the conceptual and reasoning difficulties that our research shows students have with frequently taught cosmology topics, such as the expansion of the universe, the Big Bang, and dark matter. We conducted a systematic investigation of the implementation of these new Lecture-Tutorials and resulting learning gains in order to test the efficacy of these new Lecture-Tutorials. Our investigation included classroom observations, results from pre–post testing using four conceptual cosmology surveys, and comparisons between classes in terms of the class time spent on cosmology topics and other instructional strategies used to teach cosmology. We used this combination of qualitative and quantitative research results to evaluate the conceptual understandings of students who used the new cosmology Lecture-Tutorials compared to those students who did not. The analysis of our data shows that, in many cases, classrooms that used the cosmology Lecture-Tutorials saw a greater increase in their students’ conceptual cosmology knowledge compared to classrooms that did not use the cosmology Lecture-Tutorials. However, our results also indicate how instructors implement the Lecture-Tutorials into their classrooms strongly influences their students’ learning gains.  相似文献   

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