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1.
This review of the literature focused on three decades of research related to precollege student understandings about the nature of science. Various interpretations of what aspects characterize the nature of science were examined, revealing an agreement among scientists, science educators, and those involved in policy-making arenas that the nature of science is multifaceted and an important component of scientific literacy. A summary of the research regarding the adequacies of student conceptions about the nature of science revealed inconsistent results. Although the majority of studies show that student understandings are less than desirable, there is research that indicates that student conceptions are acceptable. Research on the impact of instructional materials and techniques on student understandings was also reviewed. The effects of language in science instruction, the content emphasis of instructional materials, integrated science curricula, and instruction in general were curricular variables found to have a negative impact on student understandings about the nature of science. Empirical evidence about the success of innovative instructional materials and techniques designed to facilitate more adequate understandings of the nature of science is needed.  相似文献   

2.
The traditional approach to the education of language minority students separates English language development from content instruction because it is assumed that English language proficiency is a prerequisite for subject matter learning. The authors of this article take the alternate view that the integration of inquiry science and language acquisition enhances learning in both domains. The report describes a conceptual framework for science–language integration and the development of a five‐level rubric to assess teachers' understanding of curricular integration. The science–language integration rubric describes the growth of teacher expertise as a continuum from a view of science and language as discreet unrelated domains to the recognition of the superordinate processes that create a synergistic relationship between inquiry science and language development. Examples from teacher interviews are used to illustrate teacher thinking at each level. © 2002 Wiley Periodicals, Inc. J Res Sci Teach 39: 664–687, 2002  相似文献   

3.

Many schools in recent years have implemented curricular projects to 'deal with' homophobia and sexism as problems that affect adolescent students and make schools unsafe. The ways in which we, as teachers and researchers, confront such problems, however, depends upon how we view their power within schools. When viewed as discursive elements of a generally heteronormative school environment, gender and sexuality norms become more complicated and subtle, as they are a part of systems of language, actions, and expectations that can be difficult to problematize with students and teachers. Drawing on feminist post-structuralist theory related to normativity and discourse analysis, our research looks at two middle-school projects aimed at interrupting heteronormative thinking by including students in the process of analyzing and re-creating school discourse. In one project, a whole class looks at gender identity formation through analyzing collective memory works collaboratively with the teacher. In the second project, a smaller group of girls works to re-think ways that the science/math curriculum could be more responsive to girls, in the end also analyzing the work that comes out of the collaboration. Together, the projects raise important questions about the effectiveness of such curricular projects, the power of school language around 'adolescence', and the potential for addressing gender normativity on the level of discourse, especially in the face of such powerful ideas of gender/sexuality in the middle grades.  相似文献   

4.
Science educators have claimed that well-conceived instructional strategies and curricular sequences, emphasizing the process aspects of science, will foster an understanding of the nature of science. Furthermore, a process emphasis on science has been cited for its ability to promote logical thinking skill, develop a locus of control “shift,” and enhance science content acquisition. The intent of this investigation was to examine the purported influence and developmental nature of a science process emphasis during a given semester of study, as well as over extended curricular sequences, each sequence being representative of three recognized preservice elementary science teacher preparatory programs. Data were collected from 135 elementary preservice teachers enrolled in science teaching methods courses at the endpoint of one of three sequences: (a) introductory process instruction with three subsequent semesters of integrated science content and teaching methods, (b) process instruction with separate subsequent content and teaching methods, and (c) only science content with subsequent teaching methods. Another 29 preservice teachers, assessed prior to entry into instructional sequences, provided a cross-sectional sample for examining developmental changes in locus of control, logical thinking, nature of science, and science content knowledge. Statistical procedures included Kruskal-Wallis ANOVA and Wilcoxon tests. Results indicated that a one-semester process skills course was influential in developing a basis for science content acquisition and in fostering an understanding of the nature of science. Results further indicate that expected additional gains are significant in science content acquisition through matriculation in an extended curricular sequence. Implications for science educators are discussed.  相似文献   

5.
The performance of 18 boys and 18 girls on four problem-solving tasks set in science contexts was compared. The tasks were administered in a one-to-one testing situation and assessments were made by direct observation, questioning, and by using written records. The tasks were valid and reliable, and the samples of boys and girls were matched for ability and curriculum background. Past studies have identified gender differences in performance on science tasks; however, this study found little evidence to support these findings. Few significant differences in performance were found. No gender differences were detected in observation, reporting, or planning skills, and there was no differential performance on the use of scientific language. Girls performed less well in relation to self-reliance, and performance differences on the interpretation skill approached significance with boys' performance superior.  相似文献   

6.
This study examined elementary and middle school students' images of science and scientists, with an analysis of how those images may be influenced by science textbooks currently in use in Taiwan. A modified Chambers' Draw-a-Scientist Test (DAST) was administered to a total 289 students from grades 1, 3, 5 and 8. Results showed that upper-grade students drew more indicators (i.e., lab coats, eyeglasses, facial features, research and knowledge symbols, and relevant captions) than did lower-grade students. An analysis of individual drawings revealed an increase in sophistication and complexity according to progressively higher grade levels. It was found that students very often drew images strikingly similar to what their science textbook presented. It implicated that our current science textbooks indeed have some degree of influence on students' image of science and scientists.  相似文献   

7.
Early competencies in reading, mathematics, and science are associated with later school achievement and adulthood socioeconomic status. This cross-sectional study examined how fundamental domain-general capacities, including language, spatial, and self-regulatory skills, together relate to competencies in reading, mathematics, and science in young Chinese children. A total of 584 Chinese children aged approximately six years were tested individually on their language (receptive vocabulary), spatial (spatial perception, spatial visualization, and mental rotation), and self-regulation (behavioral regulation and working memory) skills, as well as their academic competencies in reading, mathematics, and science. The results showed that vocabulary, spatial, and self-regulatory skills were all associated with Chinese reading, mathematics, and life sciences, whereas only vocabulary was related to earth and physical sciences. The relation between vocabulary and formal mathematics and that between mental rotation and life sciences were found to be stronger in boys than in girls. The findings suggest that foundational domain-general skills may provide the building blocks for children’s academic competencies.  相似文献   

8.
In this article, I explore how a dozen high-school sophomore girls expressed their relationship to and understanding of prenatal testing, and its possible place in their lives and in the lives of others, in the context of a short unit on prenatal testing during a semester-long course in human genetics. The data come from an assignment designed to help students bring their understanding of prenatal testing into the realm of personal choice, as well as practice applying the science of chromosomal inheritance. Difference feminism is used to develop themes evident in these girls' talk about prenatal testing. The instructional choices made were based on difference feminism, which implies that girls would be interested in science that connects to human bodies, children, and traditional women's responsibilities. This claim is elaborated on and applied by this study, in which I concentrate on the question: How can difference feminism help us better to hear and comprehend high school girls' relationships with reproductive technology, their own bodies, and their own lives? I propose that focusing on girls' lives and knowledge is a way to consider alternatives in curricular content, in addition to helping us learn how to help more girls connect with science. © 1998 John Wiley & Sons, Inc. J Res Sci Teach 35: 877–896, 1998.  相似文献   

9.
Both classroom instruction and lexical database development stand to benefit from applied research on sign language, which takes into consideration American Sign Language rules, pedagogical issues, and teacher characteristics. In this study of technical science signs, teachers' experience with signing and, especially, knowledge of content, were found to be essential for the identification of signs appropriate for instruction. The results of this study also indicate a need for a systematic approach to examine both sign selection and its impact on learning by deaf students. Recommendations are made for the development of lexical databases and areas of research for optimizing the use of sign language in instruction.  相似文献   

10.
This study examines the usefulness of the science test presented in a dual-language format in two separate science test booklets, one comprising English-only test items and the other, dual-language test items. The participants were 1720 eight-grade students from 26 secondary schools. Most of the students viewed the dual-language test positively as they felt it enhanced their understanding of the test items. However, only two items were found to function significantly different in the dual-language format. Students’ performance for the two versions of the test was comparable. The results showed that the extra language version did not provide greater accessibility and comprehensibility of the test to the students. The findings may prove valuable to decision-making regarding language accommodation policies for testing in content areas.  相似文献   

11.
The goal of linguistics has been in dispute since its origin as a scientific discipline. The situation remains confused and consequently the curricular position of linguistics is ambiguous. An examination of the historical reasons for this indicates the following conclusions: At the time when language was first proposed as a subject for scientific study the natural sciences were still dominated by the mechanical model of Newtonian physics; this attitude of mind has inhibited the development of linguistics.Further development ought logically to depend on the harmonisation of linguistics with modern scientific concepts, such as relativity, probability, system and field. Such a move would constitute in part a new goal for linguistics. If such an innovation is admitted, those areas where language study overlaps with other subjects, e.g. psychology, logic and anthropology, provide natural exit points for a study of language and the epistemology of science.Linguistics is therefore capable of serving as a foundational discipline in a liberal arts curriculum. Its particular claim to assume this role lies in the fact that language is the object of both humanistic and scientific study. Hence to give linguistics a more central role in the tertiary curriculum offers a fundamental educational benefit in narrowing the cultural gap between the arts and science, and it is worth considering a change of emphasis in the curriculum to achieve this end.The aim of this paper is not to suggest detailed changes but to stimulate discussion of this consideration.  相似文献   

12.
This study examines the relative attraction of hands-on, interactive science museum exhibits for females and males. Studies have demonstrated that such exhibits can be effective learning experiences for children, with both academic and affective benefits. Other studies have shown that girls and boys do not always experience the same science-related educational opportunities and that, even when they do, they do not necessarily receive the same benefits from them. These early differences can lead to more serious educational and professional disparities later in life. As interactive museum exhibits represent a science experience that is-readily available to both girls and boys, the question arose as to whether they were being used similarly by the two groups as well as by adult women and men. It was found that both girls and boys used all types of exhibits, but that girls were more likely than boys to use puzzles and exhibits focusing on the human body; boys were more likely than girls to use computers and exhibits illustrating physical science principles. However, this was less true of children accompanied by adults (parents) than it was of unaccompanied children on school field trips who roamed the museum more freely.  相似文献   

13.
The aims of this study were to examine self‐efficacy and other motivation variables among high school science students (n = 502); to determine the degree to which each of the four hypothesized sources of self‐efficacy makes an independent contribution to students' science self‐efficacy beliefs; to examine possible differences between life, physical, and Earth science classes; and to investigate patterns of gender differences that may vary among the fields of science. In Earth science classes, girls earned higher grades and reported stronger science self‐efficacy. In life science classes, girls earned higher grades but did not report stronger self‐efficacy, and did report higher science anxiety. In physical science, there were no gender differences in grades or self‐efficacy, but girls again reported higher levels of science anxiety. For boys across science fields, science self‐efficacy significantly predicted course grades and mastery experiences was the only significant predictor of self‐efficacy. For girls, self‐efficacy was also the strongest predictor of science grade across fields. Mastery experiences significantly predicted self‐efficacy in Earth science for girls, but social persuasions, vicarious experiences, and physiological states were better predictors of science self‐efficacy in life and physical science classes. Results support (Bandura, A., 1997) hypothesized sources of self‐efficacy, previous research findings on self‐efficacy in the domain of science, and validate the suggestion made by Lau and Roeser (2002) to disaggregate data by science field. © 2008 Wiley Periodicals, Inc. J Res Sci Teach 45: 955–970, 2008  相似文献   

14.
Girls and boys and practical science   总被引：1，自引：0，他引：1  

A critical examination of the evidence from the literature suggests that there are more similarities than differences between the performances of girls and boys on practical laboratory tasks, notwithstanding well‐established, sex‐related differences in areas of interest, science‐relevant experience and confidence. This premise is supported by an analysis, with differentiation by sex, of the Techniques for Assessment of Practical Skills in Science Project (TAPs)? data, gathered from 1122 Scottish pupils 15‐16 years old, considered by their teachers to be low achievers in science.

It is argued that, by neglecting the assessment of practical work, there has been a failure to capitalize on the generally favourable attitudes of pupils, particularly those of girls, to this component of science courses, and that a formative, diagnostic and criterion‐referenced approach to assessment, together with the development of a sensitive reporting system, has the potential to enhance teaching and learning. An assessment system with these characteristics was developed and the resulting profiles of achievement, compiled by the class teacher, were used for purposes of national certification. Novel features of the scheme may have contributed to the better performances ‘overall’ by the girls in the sample.  相似文献   

15.
This study investigated the influence of general vocabulary knowledge, science vocabulary knowledge, and text based questioning on the science reading comprehension of three types of students who varied in their English language proficiency. Specifically, grade 5 English-Only speakers, English Language Learners in the United States, and students learning English as a Foreign Language in a Spanish-speaking country were compared across the aforementioned variables to examine their relationship to reading comprehension. Findings indicated that general vocabulary, science vocabulary, and questioning contributed significant variance to the explanation of science reading comprehension. However, no particular variable was found to interact with language proficiency in their contribution to science reading comprehension. Findings are discussed in terms of the roles that each variable could play in content area comprehension. Implications for content-area literacy instruction of second-language students are considered.  相似文献   

16.
It has long been recognised that analogies may be a useful tool in science education. At the same time, it has been found that there are challenges to using analogies in teaching. For example, students might not identify a suitable analogy, might not recognise how the taught target domain is similar to the source domain to which it is compared, or may fail to realise where the analogy breaks down. The present study offers a review of two trends which reflect the ambition to come to terms with such challenges: self-generated analogies, making use of students’ own analogies in teaching, and analogy generation in collaborative settings, such as in small-group work. Empirical studies show predominately positive results with regard to students’ enjoyment and learning gains, and point to opportunities for formative assessment. The specificities of language in conjunction with analogy and the role of analogies in authentic science classroom discourse are suggested as areas of study that deserve more attention going forward.  相似文献   

17.
This study investigated participation in a state-level science competition over most of its 35-year history. Issues examined included whether different gender patterns occurred with respect to entry rate, project topic (life science, physical science, earth science, and math), and project type (research or display). The study also examined to what extent the identified patterns reflected or contradicted nationwide patterns of girls' academic performance in science over roughly the same time period. It was found that although girls initially participated in the fair less frequently than boys, for the past 20 years their participation rate has been greater than that of boys. Examination of topic preferences over the years indicates that both girls and boys have traditionally favored life science; however, boys have been and continue to be more likely to prepare physical, earth, and math/computer science projects than girls. Another gender difference is that girls are generally less likely than boys to prepare projects based on experimental research as opposed to library research. The study provides some suggestions for teachers and teacher educators for addressing these disparities.  相似文献   

18.
This study examines how traditional ecological knowledge—TEK—can be identified and utilized to create culturally responsive science learning opportunities for Maya girls from a community in the Guatemalan highlands. Maya girls are situated in a complex socio-historical and political context rooted in racism and sexism. This study contextualizes the current situation of Maya women and girls in Guatemala and emphasizes the important need for educators to create science-learning opportunities that are culturally congruent. The author posits that when considering how to make the teaching and learning of science culturally responsive for Maya girls, educators must begin with the scientific knowledge inherent within Maya communities. Indigenous communities have a wealth of TEK that can be used to contextualize science curricula that can be purposely designed to meet the nuanced cultural needs of traditional Maya girls within and outside Guatemala.  相似文献   

19.
This study draws from interviews with 20 girls in British Columbia, Canada who participated to varying degrees in skateboarding culture. We found that skater girls saw themselves as participating in an ‘alternative’ girlhood. Becoming skater girls involved the work and play of producing themselves in relation to alternative images found among peers at school, at skate parks, online and in music videos. The alternative authority of skater girl discourse gave the girls room to manoeuvre within and against the culturally valued discourse of emphasized femininity. A subgroup of middle class skater girls, the ‘in‐betweeners’, used skater girl discourse as a way of distancing themselves from the sexism evident in skater culture as well as emphasized femininity. They used one discourse against another and took advantage of contradictions within skater discourse to forge a positive identity for themselves.  相似文献   

20.
This paper reports the findings of a study of the literacy perceptions and practices of general primary teachers (Key Stage 2) and post‐primary science teachers (Key Stage 3) within two clusters of schools. The study also explores the possible impact on pupils of any difference in the language climate which may accompany them on their journey across this curricular interface. Interviews with science managers and teachers suggest a quite restricted view of literacy is taken in both phases of schooling with no evidence of any practices which may support the notion of curricular continuity. The different approaches to the introduction of scientific terminology, writing, reading and classroom discussion were reflected in pupils' accounts of their experience and clearly posed a problem for some. We suggest there would be merit in teachers adopting a much wider perspective on literacy which recognises the opportunities for developing the interrelated strands of “general literacy” and “the discourses of science” alongside “learning through language”. By addressing each of these domains, and sharing practice across the key stages, a more comprehensive and coherent approach to “language, literacy and science learning” may result, in turn helping minimise the adverse effects of “language climate change”.  相似文献   

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