首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献，搜索用时 140 毫秒
1.
Students in a college nonscience majors' biology course took tests designed to reveal their conceptions of respiration and photosynthesis before and after course instruction. Even though most students had taken at least a full year of biology, serious misconceptions persisted. Most students gave definitions of respiration, photosynthesis, and food which were markedly different from those generally accepted by biologists. These incorrect definitions were associated with more fundamental misunderstandings about how plants and animals function. Most students could not explain how animal cells use either food or oxygen. They understood plants as vaguely analogous to animals, taking in food through their roots instead of mouths. Previous biology instruction seemed neither to improve student performance on the pretest nor to prepare them to master these conceptions during the course. Course instruction did improve student's understanding, but misconceptions persisted for many students. These results raise fundamental questions about the effectiveness of curriculum and instruction in current high school and college biology courses.  相似文献   

2.
This article reports an investigation of the intuitive scientific ideas and understandings of 321 preservice elementary teacher education students enrolled in the 2nd year of a 3-year program. The sample completed a physical science concept challenge instrument by responding, in writing, to open-ended questions about the concepts of floating/sinking, the nature of matter, air pressure and its effects, and the balance beam. Subjects' responses and explanations were analyzed, and response categories established. The results reveal that the majority of subjects, with the exception of a high proportion of those who had a successful senior high school background in physics and chemistry, have misunderstandings in these basic concept areas. It is argued that teachers should have a sound conceptual knowledge base in order to implement effective problem-solving strategies in the elementary science classroom. The importance of teaching science in elementary schools is widely acknowledged, therefore, teacher educators must identify and implement more effective strategies for science instruction in preservice teacher education courses that will enable all students to construct scientifically accurate concept knowledge.  相似文献   

3.
Students with intellectual disabilities often experience school‐related stress. As a result, they are confronted with many difficulties in their daily school life. The goal of this study was to assess situations of school life that students attending Greek mainstream settings are likely to experience as stressful. Twenty students with mild intellectual disabilities were interviewed about their feelings and thoughts regarding possible stressful situations in school. Qualitative analysis of the interviews' data was conducted. As a result, five main sources of school‐related stress were mentioned: school achievement and classroom participation; peer interactions; student behaviour and risk of injury; parents' expectations; and teacher acceptance. The findings suggest that children with intellectual disabilities experience school‐related stress mainly to a normal degree. Concerning the stress factors that emerged as crucial, a basic conclusion can be drawn: mainstream schools should be changed into inclusive communities where student differences are fully respected, and wherein all children, with and without disabilities, are supported according to their individual abilities, potentials and needs.  相似文献   

4.
This paper is a case study of first‐year science and engineering students’ understandings of plagiarism. Students were surveyed for their views on scenarios illustrating instances of plagiarism in the context of the academic work and assessment of science and engineering students. The aim was to explore their understandings of plagiarism and their judgement about the seriousness of each incident, and to shed light on the decisions they might make in response to such situations. The data indicated that although students could provide sound definitions of plagiarism, they did not always appreciate the scope of class‐based activity that constitutes plagiarism. Some examples of plagiarism were regarded as less serious than others, and in contradiction with the institution’s policy. Students also generally favoured more lenient penalties than provided for by policy. The purpose of the study was to ascertain first‐year students’ developmental needs in relation to academic honesty, plagiarism and appropriate acknowledgement of others’ work.  相似文献   

5.
With the financial support of several large foundations and the federal government, creating small schools has become a prominent high school reform strategy in many large American cities. While some research supports this strategy, little research assesses the relative costs of these smaller schools. We use data on over 200 New York City high schools, from 1996 through 2003, to estimate school cost functions relating per pupil expenditures to school size, controlling for school output and quality, student characteristics, and school organization.We find that the structure of costs differs across schools depending upon mission—comprehensive or themed. At their current levels of outputs, themed schools minimize per pupil costs at smaller enrollments than comprehensive schools, but these optimally sized themed schools also cost more per pupil than optimally sized comprehensive schools. We also find that both themed and comprehensive high schools at actual sizes are smaller than their optimal sizes.  相似文献   

6.
主要分析了目前高校扩招、普高升温、中等职业教育出现了暂时的滑坡现象后,职业学校为了扭转这种局面,增强办学活力,试办或举办综合高中的动因、存在的主要问题及几点建议。  相似文献   

7.
The experiences of seven Australian senior secondary school students with vision impairment attending mainstream schools in Victoria were explored to gain an understanding of the support mechanisms operating to allow them access to an inclusive education. This qualitative study primarily used the in‐depth interviews of students, augmented by brief interviews with Heads of Education Support, parents, aides and teachers. Students attributed difficulties to time available, accessing e‐print and large format materials, assistive technology and access, and exclusion from classes of science, mathematics, and physical education in particular. In Australia, there is an expectation that legally mandated adjustments for students with disabilities will enable equitable, quality, and inclusive education. This was not evident in the experiences of the students in this study. Having aide support did not prevent exclusionary practices. Educators and support staff need to understand the perspectives of students with vision impairments to better facilitate successful teaching and learning experiences.  相似文献   

8.
The concepts behind the technology of genetic modification of organisms and its applications are complex. A diverse range of opinions, public concern and considerable media interest accompanies the subject. This study explores the knowledge and attitudes of science teachers and senior secondary biology students about the application of a rapidly expanding technology, genetic engineering, to food production. The results indicated significant difference in understanding of concepts related with genetically engineered food stuffs between teachers and students. The most common ideas about genetically modified food were that cross bred plants and genetically modified plants are not same, GM organisms are produced by inserting a foreign gene into a plant or animal and are high yielding. More teachers thought that genetically engineered food stuffs were unsafe for the environment. Both teachers and students showed number of misconceptions, for example, the pesticidal proteins produced by GM organisms have indirect effects through bioaccumulation, induces production of allergic proteins, genetic engineering is production of new genes, GM plants are leaky sieves and that transgenes are more likely to introgress into wild species than mutated species. In general, more students saw benefits while teachers were cautious about the advantages of genetically engineered food stuffs.  相似文献   

9.
Abstract

In England, both Religious Education (RE) and science are mandatory parts of the school curriculum throughout the 5-16 age range. Nevertheless, there remain concerns that, as in many countries, students do not have a good understanding about the scope of each subject nor about how the two subjects relate. This article reports on a study that involved an intervention of six lessons in RE and six in science that were intended to help 13-15?year-old students develop a better appreciation for the relationship(s) between science and religion and a less reductionist understanding of biology. Our focus here is on the understandings that students have about the relationship between science and religion. The intervention was successful in improving the understandings of almost half of the students interviewed, but in these interviews we still found many instances where students showed misunderstandings of the nature of both religious and scientific knowledge. We argue that RE needs to attend to questions regarding the nature of knowledge if students are to develop better understandings of the scope of religions and how they arrive at their knowledge claims.  相似文献   

10.
It is widely accepted that mathematical learning builds upon students’ prior knowledge and understandings, and their identities. In this study, this phenomenon is explored with indigenous students in remote community schools in outback Australia. Through one-on-one task-based interviews, it was found that these students had some clear understandings of the measurement concepts involved, although these understandings were often idiosyncratic to these students in this context. The task-based one-on-one interview gave better insights into students’ knowledge than the written form of the National Assessment Program–Literacy and Numeracy assessment. Nevertheless, the students’ conceptions provide a useful basis upon which to build subsequent knowledge, understanding and skills in the forms required by the formal mathematics curriculum.  相似文献   

11.
The study was carried out with 175 Turkish students by using drawings at different ages understanding of gene, DNA and chromosome concepts. Students from 8th, 9th, 11th grades and, science and biology student teachers were simply asked to draw the structure of gene, DNA and chromosome in a cell and also to give explanations about these three concepts. Differences in understanding between the age groups were found to be significant for the concepts of gene and DNA. None of the groups exhibit sound understanding and regardless of the age levels, students in all groups had alternative ideas about the three concepts investigated.  相似文献   

12.
In Indonesian primary schools, sex education is implicitly integrated into various related subjects, such as science, biology, social studies and religion. The technical facts of ovulation and sperm are mentioned in biology, although little or no connection is made between this process and sexual intercourse. By the end of primary school, therefore, children are likely to have a poor understanding of how pregnancy can occur. Given that young girls at this age have already experienced or will soon experience menarche, and given the increasing trend towards delaying the age at marriage in Indonesian society, this lack of knowledge places young people at risk of various negative consequences, including unwanted pregnancy. In this paper, we investigate the level of understanding regarding human reproduction amongst 1762 students attending the last year of primary school, distributed across 32 different schools in Indonesia. Despite the fact that all schools follow a national curriculum, our results reveal widespread variability in the students' comprehension of how pregnancy can occur. In particular, students attending Islamic religious schools and those in less developed provinces of Indonesia appear to have a much poorer understanding of the link between sexual intercourse and conception.  相似文献   

13.
This study examined 7th-grade life science students, 10th-grade biology students, and college zoology students for understanding of the concept of diffusion. Responses from 100 students from each grade level were randomly selected for data analysis. Each student responded to a test packet consisting of a biographical questionnaire, two Piagetian-like developmental tasks, and a Concept Evaluation Statement (CES). The CESs were used to measure the students' understandings of the concept of diffusion. None of the 300 students across the three grade levels exhibited complete understanding of the diffusion concept. There was no appreciable difference among the grade levels in sound or partial understanding, misconceptions, or “no understanding.” An analysis of the misconceptions exhibited by the college sample showed that many of the misconceptions could be traced to a misapplication of scientific terminology.  相似文献   

14.
Until recently, children and young people’s perspectives have been largely overlooked in considering optimal approaches to supporting their wellbeing at school. This article reports student views on the meaning of ‘wellbeing’ and how this is best facilitated, gathered as part of a large, national research project aimed at understanding and improving approaches to wellbeing in schools. The data reported here were gathered through 67 focus groups, involving 606 primary and secondary school students, across three Catholic school regions in different Australian states. Students provided rich accounts of how they view their wellbeing, conceptualised across three interconnected themes of ‘being’, ‘having’ and ‘doing’. They identified relationships with self, teachers, friends, peers and significant others, as central to their wellbeing. The findings point to immense potential in accessing and utilising children and young people’s views for change and reform in schools in the area of student wellbeing.  相似文献   

15.
抗战期间,为应抗战救国和培养人才之亟需,敌占区各中学纷纷迁往偏远的西南、西北等地坚持办学,这不仅使我国中等教育得以维持发展,也为抗战建国培养了大批人才,并对其西迁所在地教育事业的发展起到了推进作用。因此,回顾和研究抗战时期这场艰苦卓绝的中学西迁的历史,不仅可以使我们对当时中国教育的发展有一个较为全面的认识,同时对今天西部地区的教育开发也不无借鉴意义。  相似文献   

16.
This study examined the extent to which teaching practices and teaching experience predict mathematics skills of children’s in the third through fifth grade by focusing on three cognitive components: (1) knowing facts and procedures, (2) applying this knowledge and (3) using reasoning. This study was longitudinal. The data was collected from 1810 students and 90 teachers attending Estonian- and Russian-speaking schools. The students’ were tested twice, at the beginning of the third and at the beginning of the fifth grade. The teachers were asked to complete a questionnaire assessing their teaching practices. The results revealed that teachers from Estonian-speaking and Russian-speaking schools’ classrooms differed in their use of teaching practices and teaching experience. Teachers in Russian-speaking schools were slightly more experienced, and they reported using more teacher-centred practices compared to teachers in Estonian-speaking schools. The study showed different effects on the outcomes of the children attending classrooms where the study language was Estonian and Russian in solving arithmetic word problems when accounting for the teachers’ use of different learner-centred teaching practices in the classroom.  相似文献   

17.
This article examines the association between school ethnic composition and immigrant students’ intentions to finish high school and to move on to higher education. We used data from 1324 immigrant and 10,546 native students gathered in the school year 2004–2005 in a sample of 85 Flemish (Belgian) secondary schools. Logistic multilevel analyses (HLM6) show that students attending schools with a majority of native students (enrolling less than 20% immigrant students) were twice as likely to plan to finish high school and to plan for higher education than those attending high concentration schools (more than 50% immigrant students). These associations were due to students’ socio‐economic status (SES) and there was no difference in aspirations between high and low concentration schools after controlling for students’ SES and the SES context of the school. All else being equal, immigrant students in high concentration schools tended to aspire to finish high school and move on to higher education slightly more than those attending medium concentration schools (20–50% immigrant students). The analyses further show that these differences between high and medium concentration schools can be explained by the more optimistic culture in high concentration schools. The main conclusion is that high concentration schools are not necessarily detrimental for students’ educational aspirations.  相似文献   

18.
This study investigated urban eighth-grade students’ knowledge of energy resources and associated issues including energy acquisition, energy generation, storage and transport, and energy consumption and conservation. A 39 multiple-choice-item energy resources knowledge assessment was completed by 1043 eighth-grade students in urban schools in two cities in Pennsylvania, USA. Mean scores for the entire assessment measure indicated low conceptual energy knowledge of the eighth-grade students. Subscale means revealed that student understandings of energy resource acquisition, energy generation, storage and transport, and energy consumption and conservation are not satisfactory. Distractor analysis identified many misunderstandings that eighth-grade students hold with regard to energy resources. Findings revealed that students did not have a sound knowledge and understanding of basic scientific energy resources facts, issues related to energy sources and resources, general trends in the US energy resource supply and use, and the impact energy resource development and use can have on society and the environment. Implications for teacher enactment of energy resources curriculum activities are discussed.  相似文献   

19.
Students with ASC are at heightened risk for bullying and their understanding of bullying is known to protect them from involvement in it (Humphrey and Hebron 2015). However, only a handful of studies have examined how students with ASC understand traditional bullying and none of them focused on cyberbullying. To fill this gap, we investigated how traditional bullying and cyberbullying are understood from the perspectives of 89 students with ASC attending inclusive schools and 490 students without ASC. Twenty vignettes were used from (Campbell et al. 2017a), based on the Olweus (1999) definition of bullying and verified by a Delphi technique. In the majority of traditional bullying and cyberbullying vignettes, students with ASC made more accurate responses than inaccurate ones and demonstrated higher accuracy rates than students without ASC. Findings of linear multiple regression analyses pointed out ASC status as a predictive variable for understanding both types of bullying, along with students' age for understanding cyberbullying. The findings highlight the ability rather than inability to understand bullying in students with ASC. It is therefore critical to include the voices and experiences of students with ASC in our research endeavour.  相似文献   

20.
This study investigated whole class interactions in 200 science lessons involving 15 teachers and students from grades 8 to 12 in two urban Australian high schools. A relatively small number of 3–7 “target students” monopolized whole class interactions. In most instances target students were male. Compared to others in the class, target students asked more questions of the teacher, were called on to respond to higher cognitive level questions, and received higher quality feedback. Two types of target student were identified. The students who actively participated in classroom interactions in a self-initiated manner tended to accept responsibility for their academic achievement and for interactions with others. The second type of target student, who participated as a consequence of being selected by the teacher, tended to have higher formal reasoning ability and achieve at a higher level than others in the class.  相似文献   

设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号