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1.
This study investigated the relationship among 68 high school students’ scientific epistemological beliefs (SEBs), cognitive structures regarding nuclear power usage, and their informal reasoning regarding this issue. Moreover, the ability of students’ SEBs as well as their cognitive structures for predicting their informal reasoning regarding this issue was also examined. The participants’ SEBs were assessed with a quantitative instrument; their cognitive structures were assessed through tape‐recorded interviews and were further analyzed with the ‘flow map method’; their reasoning regarding nuclear power usage was assessed with an open‐ended questionnaire; and, then, their responses were analyzed both qualitatively and quantitatively. It was revealed that students’ beliefs about the justification of scientific knowledge (an aspect of the beliefs on the nature of knowing science) were significantly correlated with their reasoning quality; the extent and the richness of students’ cognitive structures as well as their usage of the information processing mode, ‘comparing,’ were positively correlated with their reasoning quality. A series of regression analyses further confirmed that students’ use of the information processing mode, ‘comparing,’ was the most significant factor for predicting reasoning quality, while their beliefs regarding the justification of scientific knowledge was the other important predictor.  相似文献   

2.
Learners’ ability in dealing with socio-scientific issues has been highlighted in contemporary science education. This study explored the effects of different on-line searching activities on high school students’ cognitive structure outcomes and informal reasoning outcomes. By using a quasi-experimental research approach, thirty-three students were assigned to a “guided searching task group”, while thirty-five students were assigned to an “unguided searching task group”. The treatments of this study were two different on-line searching activities. All the participants were asked to search relevant information regarding nuclear power usage on the Internet during the period of two classes (100 min). However, the students in the un-guided searching task group were asked to search freely, while those in the guided searching task group were provided with a searching guideline. The participants’ cognitive structures outcomes as well as their informal reasoning outcomes regarding nuclear power usage were assessed before and after the conduct of on-line searching tasks. The results of ANCOVA revealed that the students in the guided on-line searching task group significantly outperformed their counterparts in the extent (p < 0.01) and the richness of their cognitive structures (p < 0.01). Also, they significantly outperformed their counterparts in the usage of the two information processing strategies, “comparing” (p < 0.05) and “inferring or explaining” (p < 0.05). Moreover, it was also found that the students in the guided on-line searching task group only outperformed their counterparts in their supportive argument construction (p < 0.05). In other words, the guided searching tasks did help the students obtain better cognitive structure outcomes; however, the increments on their cognitive structure outcomes may only help them to propose more supportive arguments, but their rebuttal construction (an important indicator for their reasoning quality) was not particularly improved.  相似文献   

3.
This paper reports a qualitative study on students’ informal reasoning on a controversial socio‐scientific issue. Twenty‐two students from four science classes in Norway were interviewed about the local construction of new power lines and the possible increased risk of childhood leukaemia. The focus in the study is on what arguments the students employ when asked about their decision‐making and the interplay between knowledge and personal values. Five different types of main arguments are identified: the relative risk argument, the precautionary argument, the uncertainty argument, the small risk argument, and the pros and cons argument. These arguments are presented through case studies, and crucial information and values are identified for each argument. The students made use of a range of both scientific and non‐scientific knowledge. The findings are discussed in relation to possible consequences for teaching models aimed at increasing students’ ability to make thoughtful decisions on socio‐scientific issues.  相似文献   

4.
This study examines students’ use of proportional reasoning in high school physics problem‐solving in a West African school setting. An in‐depth, constructivist, and interpretive case study was carried out with six physics students from a co‐educational senior secondary school in Nigeria over a period of five months. The study aimed to elicit students’ meanings, claims, concerns, constructions, and interpretations of their difficulty with proportional reasoning as they worked on a series of 18 high school physics tasks. Multiple qualitative research techniques were employed to generate, analyse, and interpret data. Results indicated that several socio‐cultural, psychosocial, cognitive, and mathematical issues were associated with students’ use of proportional reasoning in physics. Students’ capacity to reason proportionally was not only linked to their difficulty with the concept, structure, and strategies of proportional reasoning as a learning and problem‐solving skill, but was also embedded in the social, cultural, cognitive, and contextual elements involved in the learning of physics. The study concludes with a discussion of the implications for teaching high school physics.  相似文献   

5.
Science & Education - Scientific advances, particularly in evolutionary biology, genetics, neuroscience and artificial intelligence, present many challenges to religious and popular notions of...  相似文献   

6.
The purpose of this study is to explore how Lakatos’ scientific research programmes might serve as a theoretical framework for representing and evaluating informal argumentation about socio‐scientific issues. Seventy undergraduate science and non‐science majors were asked to make written arguments about four socio‐scientific issues. Our analysis showed that the science majors’ informal arguments were significantly better than the non‐science majors’ arguments. In terms of the resources for supporting reasons, we find that personal experience and scientific belief are the two categories that are generated most often in both groups of the participants. Besides, science majors made significantly greater use of analogies, while non‐science majors made significantly greater use of authority. In addition, both science majors and non‐science majors had a harder time changing their arguments after participating in a group discussion. In the study of argumentation in science, scholars have often used Toulmin’s framework of data, warrant, backing, qualifiers, claims, and rebuttal. Our work demonstrates that Lakatos’ work is also a viable perspective, especially when warrant and backing are difficult to discern, and when students’ arguments are resistant to change. Our use of Lakatos’ framework highlights how the ‘hard core’ of students’ arguments about socio‐scientific issues does, indeed, seem to be protected by a ‘protective belt’ and, thus, is difficult to alter. From these insights, we make specific implications for further research and teaching.  相似文献   

7.
The present study used focus group data to explore students’ perceptions of the culture of their upper-middle-class high school. Although students described a high-pressure school with negative physical and psychological consequences, they valued the social and educational advantages this context conferred. They also simultaneously faulted and appreciated parents’ efforts to maintain the school's competitive climate and status. The discussion addresses how stakeholders work to sustain a culture of privilege, despite costs entailed.  相似文献   

8.
9.
The contemporary education system in the United States is inadequate in the provision of services to assure that all students exit high school with the knowledge and skills necessary to enter postsecondary education or the workforce. This is particularly true for indigenous youth (Tanabe & Mobley, 2011). According to scholars, dual enrollment appears to be an appropriate solution for assisting indigenous youth to perform better in high school and to be better prepared to enter postsecondary education and the workforce (Rodriguez, Hughes, & Belfield, 2012; Vargas, Roach, & David, 2014). As demonstrated in this study, promoting dual enrollment programs, for Native Hawaiian youth, along with mentorship and financial assistance, has a positive impact on post high school outcomes. Thus, after describing the goals and model of Project Ho‘oku‘i, this article reports on the experiences and perceptions of Native Hawaiian youth who participated in a dual enrollment program (i.e., enrolled in high school and postsecondary education simultaneously). This study utilized grounded theory methodology. Focus groups, with semi-structured open-ended questions, were conducted with 103 participants over a 24-month period. The findings of the research comprise two major themes that are concerned with Native Hawaiian students’ educational Progress at large and address the issue of relationality, including the practice of self-sufficiency in sorting through future career options and learning one’s sense of self-in-society, in particular its relational aspects.  相似文献   

10.
Spiders are traditionally considered to be among the least popular of animals. Current evidence suggests that a negative attitude towards spiders could be influenced by both cultural and evolutionary pressures. Some researchers suggest that science education activities could positively influence students’ perceptions of spiders. Their evidence is, however, ambivalent. Using a five‐point score Likert‐type questionnaire in which the items were developed in a similar way to four of Kellert’s categories of attitude (scientistic, negativistic, naturalistic, and ecologistic) towards invertebrates, we compared the level of knowledge of and attitudes towards spiders of high school students from two countries, Slovakia (n = 354) and South Africa (n = 382). The students represented different cultures and followed dissimilar science education curricula. Only among the Slovakian students there was a statistically significant but low correlation between knowledge and attitude (r = 0.30). The South African students scored higher in the categories of scientistic, naturalistic, and ecologistic attitudes. Comparison of attitude towards spiders of indigenous Africans from coeducational Catholic schools revealed that South African students have greater fear of spiders than Slovakian students, supporting the biological preparedness hypothesis. This hypothesis predicts a greater fear of spiders in South Africa than in Europe since several South African spiders possess venoms that are dangerous to humans. The results of this study are discussed from science education, cultural, and evolutionary perspectives.  相似文献   

11.
This study aims to provide insights into the role of learners’ knowledge structures about a socio-scientific issue (SSI) in their informal reasoning on the issue. A total of 42 non-science major university students’ knowledge structures and informal reasoning were assessed with multidimensional analyses. With both qualitative and quantitative analyses, this study revealed that those students with more extended and better-organized knowledge structures, as well as those who more frequently used higher-order information processing modes, were more oriented towards achieving a higher-level informal reasoning quality. The regression analyses further showed that the “richness” of the students’ knowledge structures explained 25 % of the variation in their rebuttal construction, an important indicator of reasoning quality, indicating the significance of the role of students’ sophisticated knowledge structure in SSI reasoning. Besides, this study also provides some initial evidence for the significant role of the “core” concept within one’s knowledge structure in one’s SSI reasoning. The findings in this study suggest that, in SSI-based instruction, science instructors should try to identify students’ core concepts within their prior knowledge regarding the SSI, and then they should try to guide students to construct and structure relevant concepts or ideas regarding the SSI based on their core concepts. Thus, students could obtain extended and well-organized knowledge structures, which would then help them achieve better learning transfer in dealing with SSIs.  相似文献   

12.
Research in socioscientific issue (SSI)-based interventions is relatively new (Sadler in Journal of Research in Science Teaching 41:513–536, 2004; Zeidler et al. in Journal of Research in Science Teaching 46:74–101, 2009), and there is a need for understanding more about the effects of SSI-based learning environments (Sadler in Journal of Research in Science Teaching 41:513–536, 2004). Lee and Witz (International Journal of Science Education 31:931–960, 2009) highlighted the need for detailed case studies that would focus on how students respond to teachers’ practices of teaching SSI. This study presents case studies that investigated the development of secondary school students’ science understanding and their socioscientific reasoning within SSI-based learning environments. A multiple case study with embedded units of analysis was implemented for this research because of the contextual differences for each case. The findings of the study revealed that students’ understanding of science, including scientific method, social and cultural influences on science, and scientific bias, was strongly influenced by their experiences in SSI-based learning environments. Furthermore, multidimensional SSI-based science classes resulted in students having multiple reasoning modes, such as ethical and economic reasoning, compared to data-driven SSI-based science classes. In addition to portraying how participants presented complexity, perspectives, inquiry, and skepticism as aspects of socioscientific reasoning (Sadler et al. in Research in Science Education 37:371–391, 2007), this study proposes the inclusion of three additional aspects for the socioscientific reasoning theoretical construct: (1) identification of social domains affecting the SSI, (2) using cost and benefit analysis for evaluation of claims, and (3) understanding that SSIs and scientific studies around them are context-bound.  相似文献   

13.
Abstract

To investigate the likelihood that explicit instruction in text summarization is being provided in classrooms, an "ideal lesson" method was used. Twelve experienced K-12 teachers were asked to devise summarization lessons appropriate to their learners and course content, to deliver the lessons, and to audiotape them. Lessons were transcribed, and instances of mentioning of summarization rules were coded. Only two teachers in the sample group discussed more than one of the five summarization rules assessed. The other teachers provided instruction that emphasized words and facts, despite their having been prompted to "assist students in improving text summaries." Staff development possibilities are discussed.  相似文献   

14.
Recent studies emphasize the importance of learning science while considering multiple perspectives on environment, society, economy, and technology, which allows learners to relate what they do in the classroom to the world beyond. In this study, 68 12-year-old primary students from 1 Malaysian school were followed while they engaged in a science curriculum centered around 8 environment-related socio-scientific issues during a unit on the interaction among living things. The analysis shows that the informal reasoning skills of the students improved significantly. Progressive implementation of SSI activities encouraged students to use evidence-based decision-making, improving reasoning modes, and advancing reasoning levels.  相似文献   

15.
朱旭 《海外英语》2013,(15):38-40
Oral communicative ability is of great importance to measure students’English ability.However,it long exists that English course of high schools focuses on grammar.In economically backward cities where high schools don’t treat speaking as a necessity,there is a prevailing phenomenon of high marks but dumb English.Based on the fact above,the author adopts some methods to conduct an investigation among teachers and students in a high school in Shanxi province.After an elaborate collection of data and a comprehensive conclusion of information related to students,the author points out problems existing in students’oral communication in the Grade Two;by analysis,the author points out some possible reasons for these problems;and lastly,the author puts forward some suggestions to these problems accordingly.  相似文献   

16.
17.
Climate change is one of the most significant science issues facing humanity; yet, teaching students about climate change is challenging: not only is it multidisciplinary, but also it is contentious and debated in political, social and media forums. Students need to be equipped with an understanding of climate change science to be able to participate in this discourse. The purpose of this study was to examine Western Australian high school students’ understanding of climate change and the greenhouse effect, in order to identify their alternative conceptions about climate change science and provide a baseline for more effective teaching. A questionnaire designed to elicit students’ understanding and alternative conceptions was completed by 438 Year 10 students (14–15 years old). A further 20 students were interviewed. Results showed that students know different features of both climate change and the greenhouse effect, however not necessarily all of them and the relationships between. Five categories of alternative conceptions were identified. The categories were (1) the greenhouse effect and the ozone layer; (2) types of greenhouse gases; (3) types of radiation; (4) weather and climate and (5) air pollution. These findings provide science educators a basis upon which to develop strategies and curriculum resources to improve their students’ understanding and decision-making skills about the socioscientific issue, climate change.  相似文献   

18.
This study is among the first to use a large-scale dataset to better understand the driving forces behind the large outflow of Chinese international students. Based on data collected from 3,001 students at 18 high schools located in the three cities of Beijing, Shenzhen and Chengdu, this paper highlights the importance of students’ academic preparation and their families’ financial capability. It shows that sociocultural factors such as Experiencing Another Culture and Gaining Global Perspective play a significant role, but are often understudied in the case of Chinese students. In addition, the disadvantaged social strata tend to be influenced more by the pushing force of low- quality education in China, and deterred by the high cost of studying overseas, whereas the advantaged social strata tend to be influenced more by the pulling force of higher-quality education overseas and the pulling force within China such as relatively privileged lives.  相似文献   

19.
This study aimed to investigate the effects of inquiry-based laboratory activities on high school students’ understanding of electrochemistry and attitudes towards chemistry and laboratory work. The participants were 62 high school students (average age 17 years) in an urban public high school in Turkey. Students were assigned to experimental (N?=?30) and control groups (N?=?32). The experimental group was taught using inquiry-based laboratory activities developed by the researchers and the control group was instructed using traditional laboratory activities. The results of the study indicated that instruction based on inquiry-based laboratory activities caused a significantly better acquisition of scientific concepts related to electrochemistry, and produced significantly higher positive attitudes towards chemistry and laboratory. In the light of the findings, it is suggested that inquiry-based laboratory activities should be developed and applied to promote students’ understanding in chemistry subjects and to improve their positive attitudes.  相似文献   

20.
The present study maps the attitudes towards students’ disruptive behaviour as part of the school discipline. Research studies on the subject usually examine the attitudes of one or two groups of relevant subjects, that is, teachers, parents or students. As teachers, students and parents do share a common milieu, the relationship of their attitudes towards student misbehaviour is important in the crystallisation of such discipline. The present study is innovative in that all three groups were examined simultaneously in one school. A standardised questionnaire was designed for all three groups which identified typical disruptive behaviour by adolescent students. The study was conducted in a centre for technological education in Central Israel which caters, especially, for low‐achieving students. Findings reveal large gaps among the three groups. While teachers seem to agree among themselves as to the severity of most of the disruptive behaviour problems at school, students and parents were found to disagree among themselves on the severity of most of the examined issues. Differences among the groups indicate a possible source for the emergence of student disruptive behaviour problems. Findings also suggest that there is a need for increased involvement of both parents and students in discipline‐related issues in the school.  相似文献   

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