Effects of Cooperative Learning on Students’ Understanding of Metallic Bonding

The present study focused on investigating the effectiveness of instruction via newly developed teaching materials based on cooperative learning when compared to a traditional approach, on ninth grade students’ understanding of metallic bonding. Fifty-seven ninth grade science students from two science classes in the same high school participated in this study. The same teacher taught metallic bonding with cooperative learning to an experimental group (N = 28) and with a traditional teacher centred approach to a control group (N = 29). Students’ conceptual understanding of metallic bonding was measured using the Metallic Bonding Concept Test. The results from the Student’s t test indicated that the mean score of the students in the experimental group was significantly higher in the experimental group (78.60, SD = 8.62), than in the control group (54.33, SD = 9.11) after treatment. In the light of the results from the concept test and individual interviews, the misconceptions related to metallic bonding were found less in the experimental group than traditional. Five of these misconceptions were firstly identified in this study. The individual interviews which were done with students from experimental group immediately after the instruction showed that students had positive perceptions about their cooperative work experiences.     

Physics Students’ Conceptual Understanding of Geometric Optics: Revisited Analysis

Journal of Science Education and Technology - In this study, we used a research tool for measuring students’ conceptual understanding in optics, the Geometrical Optics Conceptual...     

Students’ Perceptions of a Problem-Based Learning Environment

During the last decades, traditional learning environments have been criticised for not developing the prerequisites for professional expertise (H. Mandl, H. Gruber &; A. Renkl, Interactive minds: Life-span perspectives on the social foundation of cognition, pp. 394–412, Cambridge, UK: Cambridge University Press, 1996; P. Tynjälä, International Journal of Educational Research, 31, 357–442, 1999). To meet this criticism, educational approaches such as problem-based learning, project-based learning and case-based learning are being implemented to an increasing extent. Research also concentrates on the efficiency of these approaches in terms of students’ learning outcomes. At the same time, classroom-based theories of learning (J. B. Biggs, British Journal of Educational Psychology, 63, 3–19, 1993; M. Prosser &; K. Trigwell, Understanding learning and teaching. Buckingham, UK: SRHE and Open University Press, 1999) stress the importance of the investigation of subjective learning environments in order to understand the nature of these students’ learning outcomes, for learning results are not a mere function of the learning setting because each student operates as a filter for the possible influence of the environment. However, most research on students’ perception of the learning environment is conducted in predominantly traditional learning environments.The goal of our research was to investigate students’ perceptions of the key design variables of a problem-based learning environment and if students perceive that they enhance learning. There are four research questions. First, to what extent do students’ perceptions of a PBL environment match the theoretical assumptions of PBL? Second, do their perceptions differ as a function of the institutional context? Third, is there a difference in the perceptions of students between groups of first year and experienced students and between disciplines? Fourth, are there interaction effects between study phase and discipline?The results show that, in general, students value the key variables of the learning environment as powerful (i.e. enhancing learning). Also, the results indicate that students’ perceptions of the learning environment in various institutional contexts differ significantly. In general, no distinctions were found related to students in different study phases. However, in terms of specific design variables, students studying in diverse disciplines showed significantly divergent perceptions. Finally, significant interaction effects were found between study phase and discipline.     

Effects of Conceptual Change Texts and Laboratory Experiments on Fourth Grade Students’ Understanding of Matter and Change Concepts

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.     

Relational Analysis of College Science‐Major Students’ Epistemological Beliefs Toward Science and Conceptions of Learning Science

In recent years, there has been an increasing interest among educational researchers in exploring the relationships between learners’ epistemological beliefs and their conceptions of learning. This study was conducted to investigate these relationships particularly in the domain of science. The participants in this study included 407 Taiwanese college science‐major students. All of them responded to two major questionnaires, one assessing their scientific epistemological beliefs (SEBs) and the other one probing their conceptions of learning science (COLS). The SEB questionnaire included four factors: “certainty,” “source,” “development,” and “justification” of science knowledge. The COLS survey consisted of six factors in a hierarchical order, that is, learning science as “memorizing,” “preparing for tests,” “calculating and practicing,” “increasing one’s knowledge,” “application,” and “understanding and seeing in a new way.” The students’ confidence and interest toward learning science were also assessed by additional questionnaire items. Stepwise regression analyses, in general, showed coherence between students’ SEBs and their COLS, indicating that the sophistication of SEBs was consistent with less agreement with lower‐level COLS (such as “memorizing” and “preparing for tests”) as well as more agreement with higher‐level COLS (such as “understanding and seeing in a new way”). However, the SEB’s “justification” factor was positively related to almost all of COLS factors from the lower‐level to higher‐level. This study finally found that among all of the SEB and COLS factors, the “preparing for tests” factor in COLS was the solely significant variable for predicting students’ interest in science and confidence toward learning science.     

Composition-Effects of Context-based Learning Opportunities on Students’ Understanding of Energy

Context-based learning has become a widespread approach in science education. While positive motivational effects of such approaches have been well established empirically, clear results regarding cognitive aspects of students’ learning are still missing. In this article, we argue that this circumstance might be mainly rooted in the definition of context itself. Based on this argument, we shift from the issue of if contexts are cognitively beneficial to focus on the question of which composition of contexts is, at least by tendency, more effective than another. Based on theories of conceptual change, we therefore conducted a small-scale intervention study comparing two groups of students learning in different sets of contexts focusing on the same scientific concept—the cross-cutting concept of energy. Results suggest that learning in a more heterogeneous set of contexts eases transfer to new contexts in comparison to learning in a more homogeneous set of contexts. However, a more abstract understanding of the energy concept does not seem to be fostered by either of these approaches. Theoretical as well as practical implications of these finding are discussed.     

University Students’ Understanding of Electromagnetic Induction

This study examined engineering and physical science students' understanding of the electromagnetic induction (EMI) phenomena. It is assumed that significant knowledge of the EMI theory is a basic prerequisite when students have to think about electromagnetic phenomena. To analyse students' conceptions, we have taken into account the fact that individuals build mental representations to help them understand how a physical system works. Individuals use these representations to explain reality, depending on the context and the contents involved. Therefore, we have designed a questionnaire with an emphasis on explanations and an interview, so as to analyse students' reasoning. We found that most of the students failed to distinguish between macroscopic levels described in terms of fields and microscopic levels described in terms of the actions of fields. It is concluded that although the questionnaire and interviews involved a limited range of phenomena, the identified explanations fall into three main categories that can provide information for curriculum development by identifying the strengths and weaknesses of students' conceptions.     

University Students’ Understanding of Chemical Thermodynamics

This study explored undergraduate students’ understanding of the chemistry topic of thermodynamics using a 4-tier diagnostic instrument, comprising 30 questions, and follow-up interviews. An additional objective of the study was to assess the utility of the 4-tier instrument for use in studies on alternative conceptions (ACs) as there has been no study done on it since its introduction in the literature in the year 2010. A total of 296 students majoring in Chemistry at a university in Singapore participated in this study—88 students in the preliminary study, 102 students in the pilot study and 106 students in the main study. This article reports on the results obtained with students in the main study; their age ranges from 20 to 22 years. Comprising answer and reason tiers plus associated confidence ratings, the 4-tier diagnostic instrument enabled the eliciting of 34 ACs harbored by the undergraduates as well as the strengths of these ACs. Of concern to note is that even for questions which were answered correctly, the mean confidence was not very high. The results of this study reiterate the point that thermodynamics is a topic fraught with conceptual difficulties and ACs. Based on the results from this study, the potential of the 4-tier test for AC studies is further underscored. Some implications of the study are discussed.     

The Collaboration of Cooperative Learning and Conceptual Change: Enhancing the Students’ Understanding of Chemical Bonding Concepts

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.     

Undergraduates’ Attitudes Toward Science and Their Epistemological Beliefs: Positive Effects of Certainty and Authority Beliefs

Attitudes toward science are an important aspect of students’ persistence in school science and interest in pursuing future science careers, but students’ attitudes typically decline over the course of formal schooling. This study examines relationships of students’ attitudes toward science with their perceptions of science as inclusive or non-religious, and their epistemological beliefs about epistemic authority and certainty. Data were collected using an online survey system among undergraduates at a large, public US university (n = 582). Data were prepared using a Rasch rating scale model and then analyzed using multiple-regression analysis. Gender and number of science and mathematics courses were included as control variables, followed by perceptions of science, then epistemological beliefs. Findings show that respondents have more positive attitudes when they perceive science to be inclusive of women and minorities, and when they perceive science to be incompatible with religion. Respondents also have more positive attitudes toward science when they believe scientific knowledge is uncertain, and when they believe knowledge derives from authority. Interpretations of these findings and implications for future research are discussed.     

The Effects of a Chemistry Course with Integrated Information Communication Technologies on University Students’ Learning and Attitudes

The purpose of this study was to evaluate the instructional effects of using animations, static figures, PowerPoint bulletins, and e-plus software as chemistry texts with the aid of computer-based technology. This study analyzed the characteristics of students involved in three multimedia courses and their achievement and attitude toward chemistry and learning chemistry. The three samples included in this study involved 257 undergraduate engineering students enrolled in the courses during the academic year in which the study occurred. The results indicate that: (a) students acquired a better understanding of targeted chemistry concepts during the multimedia courses, (b) some categories of students, based on their major area of study, computer use, and attendance status at orientation achieved significantly (p < 0.05) higher post-test scores when adjusted for pre-test performance, and (c) significant differences and Cohen’s effect sizes in attitudes toward chemistry and learning chemistry were detected for students’ level of computer use, disposition toward computer multimedia, gender, and attendance at the multimedia orientation session. It appears to be helpful to incorporate computer-based multimedia (animations, images, sounds) teaching while utilizing constructivist design principles to facilitate students’ chemistry understanding and attitude toward chemistry and learning chemistry.     

Effect of a Diagram on Primary Students’ Understanding About Electric Circuits

Research in Science Education - This article reports on the effect of using a diagram to develop primary students’ conceptual understanding about electric circuits. Diagrammatic...     

Investigating the Relationships Among Elementary School Students’ Epistemological Beliefs, Metacognition, and Constructivist Science Learning Environment

The research questions addressed in this study were: what types of epistemological beliefs do elementary students have; what types of metacognition do elementary students have; and what are the relationships among students’ perceived characteristics of constructivist learning environment, metacognition, and epistemological beliefs. A total of 626 students enrolled in sixth, seventh, and eight grades of nine elementary public schools located in Ankara, Turkey constituted the participants of this study. Constructivist learning environment survey (CLES), Junior metacognitive awareness inventory (Jr. MAI), and Schommer epistemological belief questionnaire (EB) were administered to students. Factor Analysis of Jr. MAI revealed both knowledge of cognition and regulation of cognition items were loaded into one factor. Confirmatory factor analysis of EB revealed a four factor structure namely innate ability, quick learning, omniscient authority, and certain knowledge. Regression analyses revealed that metacognition and omniscient authority were significant predictors of personal relevance dimension of CLES. Metacognition was found as the only predictor of the student negotiation. Innate ability and metacognition significantly contributed to uncertainty. This study revealed that the elementary students with different mastery levels hold different epistemological beliefs and multi-faceted nature of elementary school students’ metacognition was seemed to be supported with this study. It was found that metacognition contributed to model more than epistemological beliefs for all three dimensions of CLES.     

A Meta-Analytical Review of Students’ Out-of-Class Communication and Learning Effects

A random-effects meta-analysis (N = 7,113) was conducted examining the relationships between students’ out-of-class communication (OCC) and learning outcomes. The findings revealed positive summary effects for OCC on affective learning (k = 7, N = 1478, r = 0.321, p < 0.001) and perceived cognitive learning (k = 11, N = 5635, r = 0.261, p < 0.001). Several moderators were identified, indicating the association between OCC and cognitive learning varied systematically because of the measurement instruments used to operationalize OCC and learning and because of interdisciplinary treatments of the constructs. Recommendations are made for future researchers including the need for a theoretical explanation of the OCC-learning relationship.     

Constraints on Conceptual Change: How Elementary Teachers’ Attitudes and Understanding of Conceptual Change Relate to Changes in Students’ Conceptions

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.     

Effectiveness of Conceptual Change Text-oriented Instruction on Students’ Understanding of Energy in Chemical Reactions

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.