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1.
This study reports the results of a research project conducted as part of high school teachers' efforts to bring about reform of science education in their school. Two classes of Grade 8 students (N = 43) taught by the same teacher were monitored in terms of students' perceptions of their learning environment, achievement levels, and conceptual understanding of research. Quantitative methods (questionnaire, tests and examinations, GPA) and qualitative methods (interviews, videotaped lessons, artifacts) were combined while the learning environment was changed to a student-centered open inquiry format. Not unexpectedly, relationships between the Autonomy and Student-Centeredness scales of the Constructivist Learning Environment Survey (CLES) and immediate (unit test) and delays post-tests (examination subsection) were detected. On the other hand, although student-student interactions in small-groups and whole-class sessions were a significant part of the learning environment, the Negotiation scale was not related to achievement. Three case studies of representative students (in terms of achievement and perceptions of the learning environment) are featured, further underscoring the importance of monitoring reform of teaching at the classroom level. 相似文献
2.
Nantawan Nantawanit Bhinyo Panijpan Pintip Ruenwongsa 《International Journal of Science and Mathematics Education》2012,10(4):827-864
Most students think animals are more interesting than plants as a study topic believing that plants are inferior to animals because they are passive and unable to respond to external challenges, particularly biological invaders such as microorganisms and insect herbivores. The purpose of this study was to develop an inquiry-based learning unit, the Fighting Plant Learning Unit (FPLU), which focuses on plant defense responses to biological stimuli. The study also investigated students’ perceptions of the FPLU implemented in a constructivist classroom. A total of 31 Thai science majors from grade 12 participated in this study. Multiple data-gathering techniques (quantitative and qualitative) were employed: conceptual testing, concept mapping, the Constructivist Learning Environment Survey questionnaire and semi-structured interviews. It was found that from their active participation, the students developed a better conceptual understanding of plant defense mechanisms. In addition, they appeared to have positive attitudes toward the FPLU as evidenced by their preference for inquiry-based teaching in a constructivist learning environment. Finally, their perspectives on and appreciation of plants as active organisms had been favorably changed by the experience. 相似文献
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EMILOV ILIYA TAFROVA-GRIGOROVA ADRIANA 《International Journal of Science and Mathematics Education》2014,14(1):107-123
This study is part of a cross-national research entitled In the past and now: Constructivist practices in teaching chemistry—Bulgaria, the Balkans and Europe. The purpose of the research is to explore science secondary classroom environments in terms of the constructivist approach. The study has been carried out at international schools and state schools in Albania, Kosovo, Romania and Turkey. The data collection methods were three surveys: the What Is Happening In This Class? (WIHIC), the Constructivist Learning Environment Survey (CLES) and the Test of Science-Related Attitudes (TOSRA). The questionnaires were given to 747 secondary school students. The results show that in the majority of the surveyed classrooms, a blended traditional-constructivist type of environment is present. The highest scores for all three questionnaires were given by students of the international school in Kosovo. The traditional and test-oriented teaching in the Turkish schools surveyed explains the low degree of satisfaction and enjoyment of science lessons among Turkish students.
相似文献5.
ILIYA EMILOV ADRIANA TAFROVA-GRIGOROVA 《International Journal of Science and Mathematics Education》2016,14(1):107-123
This study is part of a cross-national research entitled In the past and now: Constructivist practices in teaching chemistry—Bulgaria, the Balkans and Europe. The purpose of the research is to explore science secondary classroom environments in terms of the constructivist approach. The study has been carried out at international schools and state schools in Albania, Kosovo, Romania and Turkey. The data collection methods were three surveys: the What Is Happening In This Class? (WIHIC), the Constructivist Learning Environment Survey (CLES) and the Test of Science-Related Attitudes (TOSRA). The questionnaires were given to 747 secondary school students. The results show that in the majority of the surveyed classrooms, a blended traditional-constructivist type of environment is present. The highest scores for all three questionnaires were given by students of the international school in Kosovo. The traditional and test-oriented teaching in the Turkish schools surveyed explains the low degree of satisfaction and enjoyment of science lessons among Turkish students. 相似文献
6.
As part of a long‐term research study to enhance science learning, this paper reports on an exploratory study aimed at identifying initial beliefs and practices of a group of teachers and students (Years 4–6) in Australia when the students engaged with multiple representations of the same science concepts. There is growing recognition in science education research that students need to understand and link different representational modes, such as graphic and verbal modes, in learning to think and act scientifically. This exploratory study used a multi‐site case‐study approach employing qualitative and quantitative methods. The findings indicated that while teachers used various modes to engage students and assess learning, they were not systematic in their focus on student integration and translation across modes. The study found that various factors affected students’ understanding of different modes, and that students who recognised relationships between modes demonstrated better conceptual understandings than students who lacked this knowledge. 相似文献
7.
This study investigates the potential of enhancing students' learning of difficult science concepts by exploring the interaction
between teachers' four different instructional approaches and students' four different learning preference styles. Students'
immediate performance and their retention for learning of buoyancy concepts serve to examine the effects, using the concept
of “buoyancy,” which has been classified as a difficult concept because it is at a higher hierarchical level and involves
the understanding of both matter and process. Results indicate that students' post-test scores were significantly affected
by both the types of instruction and students' learning preference styles; while students' retention test scores were significantly
affected by the types of instructions. Moreover, this study does not support that matching teaching style with students' learning
preference would make students' learning more effective. Nevertheless, because procedural learning preference styles (QB-learning
preference) students performed better on the retention test than other learning preference styles students, it indicates the
possibility that procedural learners are more efficient than others for learning such higher hierarchical and difficult concepts,
regardless of the types of instruction students receive. 相似文献
8.
The theoretical background and different methods ofconcept mapping for use in teaching and in research on learning processes are discussed. Two mathematical projects, one on fractions and one on geometry, are presented in more detail. In the first one special characteristics of concept maps were elaborated. In the second one concept mapping allowed students' individual understanding to be monitored over time and provided information about students' conceptual understanding that would not have been obtained using other methods. Regarding the students' individual concept maps in more detail there were some additional findings: (i) The characteristics of the maps change remarkably from fourth grade to sixth grade; (ii) There is some evidence that prior knowledge related to some mathematical topics plays a very important role in students' learning behaviour and in their achievement; (iii) Concept maps provide information about how individual students relate concepts to form organised conceptual frameworks; (iv) Long-term difficulties with specific concepts are able to be traced. These findings are discussed with regard to results of other studies as well as to their implications for the teaching of mathematics in the classroom. 相似文献
9.
Julia D. Plummer Valerie M. Zahm Rebecca Rice 《Journal of Science Teacher Education》2010,21(4):471-493
This study investigated the impact of an open inquiry experience on elementary science methods students’ understanding of
celestial motion as well as the methods developed by students to answer their own research questions. Pre/post interviews
and assessments were used to measure change in participants’ understanding (N = 18). A qualitative approach was used to describe the nature of each participant’s investigation through an analysis of
their science journal and poster presentations. A comparison of participants’ inquiry projects with the change in their understanding
revealed that while most participants improved in both their area of inquiry and beyond, elementary science methods students
may need more guidance to reach a full scientific understanding across all aspects of celestial motion. 相似文献
10.
Diana Laurillard 《Instructional Science》1991,20(1):3-23
The research reported represents a non-standard approach to basic research on educational television, in that it uses qualitative methods to describe learning and to illuminate which programme features are important. It was based on observation, interview and test data from five groups of 20–30 Open University students, each watching a social science television programme as part of their course. A qualitative analysis of students' summaries of the programmes showed that only half achieved the intended learning outcomes. A further analysis of the students' responses to key extracts showed that this is more likely to be because of programme structure than because of presentational quality. The research design and results are related to similar studies on students learning from text, and contrasted with the methodology adopted in other studies of the effects of educational television. 相似文献
11.
STACEY BLACKMAN 《Support for Learning》2010,25(1):4-10
This article utilises a multiple case study strategy to explore the narratives of Caribbean students with dyslexia on grouping for instruction. It presents a model on learner engagement which highlights students' cognitions about the social and cognitive aspects of learning and the processes that contribute to building knowledge and understanding. The qualitative research design combines multiple methods of data collection, mainly focus groups, in-depth interviews, documentary evidence along with narrative observations to capture the experiences of students. This research also demonstrates that students are the most powerful resource available to teachers, and that engaging them in dialogue can facilitate the development of effective pedagogies for teaching. 相似文献
12.
Elizabeth I. Stringer Jasmine D. Hendrix Kirk A. Swortzel J. Byron Williams M. Wes Schilling 《Journal of Food Science Education》2019,18(1):21-28
Historically, high school chemistry has been the predominate venue for the introduction of food science curriculum to students. With the current decline in chemistry as a required course for graduation, the possibility of exposure to food science in high school could equally decline. The purpose of this research was to determine if high school students in a biology class without a chemistry background could comprehend eight basic food science principles equally as well as students in a chemistry class that were taught the same principles. This study assessed baseline knowledge of high school students, determined the effect of food science‐based lessons on baseline knowledge and level of understanding, and determined the effect of food science‐based lessons on students’ awareness of and interest in food science. Baseline knowledge and awareness of food science was low. Food science‐based instruction resulted in higher posttest scores. Results indicated no differences in students’ knowledge base and level of understanding between biology and chemistry classes and supported the idea of further incorporating a food science curriculum into high school biology. 相似文献
13.
The Anatomy Department at Tel-Aviv University Medical School offers its students an elective course of 26 didactic hours on human evolution. The course is open to students from all faculties, who must fulfill all academic requirements, without a prerequisite of a background in anatomy. Approximately 120 students attend annually, a third of them are nonmedical students who major in philosophy, archeology, and sociology. This article discusses the course's contributions to students' understanding of a scientific concept that a scientific theory can be contradicted by new evidence, because facts govern science. Also, research methods of applying scientific principles establish the understanding of the human body, which evidently contributes to health and medicine. In the classes, the students are divided into mini-groups of 2-3 students, while the lecturer moves among students to examine fossils. In addition, analogies, open-discussions, and explanations accompany the tangible experiences. The lecturer of the course is an experienced anthropologist-anatomist researcher. He is a role-model and a mentor, sharing with the students his belief that a scientist should be persistent in his research to overcome difficult circumstances. Students, regardless of their backgrounds, express high appreciation of the course in their feedback questionnaires. The message conveyed by this course is that not only knowledge counts but also its integration with scientific principles. This course teaches us that science can bring students from different areas to study together and share ideas. In conclusion, this is a unique course in the eyes of the faculty and students alike. 相似文献
14.
Abigail B. Snyder Randy W. Worobo Alicia Orta‐Ramirez 《Journal of Food Science Education》2016,15(3):78-82
Food spoilage has an enormous economic impact, and microbial food spoilage plays a significant role in food waste and loss; subsequently, an equally significant portion of undergraduate food microbiology instruction should be dedicated to spoilage microbiology. Here, we describe a set of undergraduate microbiology laboratory exercises that focus specifically on food spoilage which were taught in 2 lab periods as part of the undergraduate food microbiology lab curriculum at Cornell University. The lab was broken down into 3 exercises. Two exercises lead students to determine the likely source of contamination in a canned salsa through (exercise 1a) plating and observation of colony morphology and (exercise 1b) determination of the thermal resistance for those isolates. The final exercise (2) involved detection of the spoilage bacterium Alicyclobacillus in apple juice. Spoiled juice demonstrations were also prepared in this exercise for students to observe sensorial changes resulting from spoilage, emphasizing that spoilage is not always visually detectable. Students were able to successfully determine the source of contamination based on the results of their laboratory findings, which they used to make recommendations for production to reduce microbial food spoilage in the canned salsa product. Based on student answers to discussion questions provided following lab exercises, participants were able to (a) identify the significance of microbial spoilage and how spoilage is principally different from food safety, (b) describe varying sensorial changes associated with microbial spoilage, and (c) employ methods and analysis to evaluate sources and type of contamination. Downloadable handouts and stepwise instructions are available as supporting information. 相似文献
15.
Huerta Margarita Irby Beverly J. Lara-Alecio Rafael Tong Fuhui 《International Journal of Science and Mathematics Education》2015,14(2):269-285
Despite research interest in testing the effects of literacy-infused science interventions in different contexts, research exploring the relationship, if any, between academic language and conceptual understanding is scant. What little research exists does not include English language learners (ELLs) and/or economically disadvantaged (ED) student samples—students most at risk academically. This study quantitatively determined if there exists a relationship, and if so, how strong of a relationship, between ELL and ED students’ academic language and conceptual understanding based on science notebook scores used in a larger science and literacy-infused intervention with a sample of culturally diverse students. The study also considered strengths of relationships between language and concept science notebook scores within student language status groups (ELL, former ELL, and English speaking). Correlational analyses noted positive, large, and significant correlations between students’ language and concept scores overall, with the largest correlations for science notebook entries using more academic language. Large correlations also existed for ELL student entries at the end of the school year. Implications of the findings for future research and practice in science classrooms including literacy interventions, such as science notebooks, with populations of culturally diverse students are discussed.
相似文献16.
Margarita Huerta Beverly J. Irby Rafael Lara-Alecio Fuhui Tong 《International Journal of Science and Mathematics Education》2016,14(2):269-285
Despite research interest in testing the effects of literacy-infused science interventions in different contexts, research exploring the relationship, if any, between academic language and conceptual understanding is scant. What little research exists does not include English language learners (ELLs) and/or economically disadvantaged (ED) student samples—students most at risk academically. This study quantitatively determined if there exists a relationship, and if so, how strong of a relationship, between ELL and ED students’ academic language and conceptual understanding based on science notebook scores used in a larger science and literacy-infused intervention with a sample of culturally diverse students. The study also considered strengths of relationships between language and concept science notebook scores within student language status groups (ELL, former ELL, and English speaking). Correlational analyses noted positive, large, and significant correlations between students’ language and concept scores overall, with the largest correlations for science notebook entries using more academic language. Large correlations also existed for ELL student entries at the end of the school year. Implications of the findings for future research and practice in science classrooms including literacy interventions, such as science notebooks, with populations of culturally diverse students are discussed. 相似文献
17.
张海泉 《新乡师范高等专科学校学报》2004,18(2):61-62
讨论了科学探究作为一种教学理念和学习方式,对于学生科学素质的培养、科学思想的形成的作用和意义;讨论了实施科学探究教学的途径和方法。指出,科学探究式教学的意义在于通过教学,使得学生领悟科学探究的精神,掌握科学探究的方法,增强科学探究意识,培养科学探究能力。在教学中,要注意发挥学生的主动性、积极性,通过课堂的教学活动和日常生活,使得学生形成运用科学理论研究、解释自然现象的意识和习惯,积极、主动地培养自己的科学探究才能,不断提高科学探究水平。 相似文献
18.
As students move through school, attitudes to school in general, and science in particular, become less positive. This paper
reports on a longitudinal study which mapped, from the students' point of view, the transition between primary and secondary
school in Western Australia. The study focused on the subject of science, and used both quantitative and qualitative methods.
During the transition, there is a considerable change in the organisation of the school, the curriculum and the teacherstudent
relationship. Students in this study, especially the girls, were generally disenchanted with the teaching strategies used
in their secondary science classrooms, and regretted the loss of the close teacher-student relationship of their primary school
years. Their perceptions were that science in secondary school was not what they had expected, and this experience may have
long term implications for their subject and career choices. 相似文献
19.
M.W. Duffrin 《Journal of Food Science Education》2003,2(1):2-6
ABSTRACT: Problem-based learning (PBL) activities incorporated into an introductory food science course can aid in student understanding of basic food science principles while developing students' problem-solving and critical thinking skills. This article describes one example of how problem-based learning was introduced into an introductory food science course designed for food and nutrition majors. Included are the problems that were developed for the course and the observed outcomes of the problem-based learning activities. Integrated problem-based learning aided students in developing communication, problem-solving, self-directed learning, and other desired skills and demonstrates the potential to be an enjoyable and challenging classroom experience for both students and teachers. However, poor problem design, such as introducing numerous problems for one subject area, may generate unanticipated quick answer approaches to solving problems. 相似文献
20.
This study was designed to investigate the relationship between students' views of the nature of scientific knowledge and
their own learning of physics, and the evolution of this relationship over time. Twenty-three students enrolled in a physics
course that emphasised laboratory work and discussions about the nature of science. Over a 15-month period, an extensive data
base was established including student essays and interviews regarding their views of the nature of science and teaching and
learning of physics. As part of an extensive data generation, students read a book on the epistemology of physics, wrote reflective
essays, and subsequently discussed the epistemology of physics in class. Two intensive case studies are used to illustrate
our understanding of students' views over time. Changes in students' views concerning the nature of scientific knowledge and
of the science teaching and learning process, which were not always complementary, are described with the aid of a model.
The findings of this research have direct relevance to the planning and implementation of science courses in which the development
of understandings of the nature of science is an objective. 相似文献