Journal of Research in Science Teaching

The development of adequate student conceptions of the nature of science has been a perennial objective of science instruction regardless of the currently advocated pedagogical or curricular emphases. Consequently, it has been an area of prolific research characterized by several parallel, but distinct, lines of investigation. Although research related to students' and teachers' conceptions of the nature of science has been conducted for approximately 40 years, a comprehensive review of the empirical literature (both quantitative and qualitative) has yet to be presented. The overall purpose of this review is to help clarify what has been learned and to elucidate the basic assumptions and logic which have guided earlier research efforts. Ultimately, recommendations related to both methodology and the focus of future research are offered.

The research reported in this study focuses on the design and evaluation of learning environments that support the teaching and learning of argumentation in a scientific context. The research took place over 2 years, between 1999 and 2001, in junior high schools in the greater London area. The research was conducted in two phases. In phase 1, working with a group of 12 science teachers, the main emphasis was to develop sets of materials and strategies to support argumentation in the classroom, and to support and assess teachers' development with teaching argumentation. Data were collected by video‐ and audio‐recording the teachers' attempts to implement these lessons at the beginning and end of the year. During this phase, analytical tools for evaluating the quality of argumentation were developed based on Toulmin's argument pattern. Analysis of the data shows that there was significant development in the majority of teachers use of argumentation across the year. Results indicate that the pattern of use of argumentation is teacher‐specific, as is the nature of the change. In phase 2 of the project, the focus of this paper, teachers taught the experimental groups a minimum of nine lessons which involved socioscientific or scientific argumentation. In addition, these teachers taught similar lessons to a comparison group at the beginning and end of the year. The purpose of this research was to assess the progression in student capabilities with argumentation. For this purpose, data were collected from 33 lessons by video‐taping two groups of four students in each class engaging in argumentation. Using a framework for evaluating the nature of the discourse and its quality developed from Toulmin's argument pattern, the findings show that there was improvement in the quality of students' argumentation. This research presents new methodological developments for work in this field. © 2004 Wiley Periodicals, Inc. J Res Sci Teach 41: 994–1020, 2004

The goal of the Inquiry Synthesis Project was to synthesize findings from research conducted between 1984 and 2002 to address the research question, What is the impact of inquiry science instruction on K–12 student outcomes? The timeframe of 1984 to 2002 was selected to continue a line of synthesis work last completed in 1983 by Bredderman [Bredderman [1983] Review of Educational Research 53: 499–518] and Shymansky, Kyle, and Alport [Shymansky et al. [1983] Journal of Research in Science Teaching 20: 387–404], and to accommodate a practicable cut‐off date given the research project timeline, which ran from 2001 to 2006. The research question for the project was addressed by developing a conceptual framework that clarifies and specifies what is meant by “inquiry‐based science instruction,” and by using a mixed‐methodology approach to analyze both numerical and text data describing the impact of instruction on K–12 student science conceptual learning. Various findings across 138 analyzed studies indicate a clear, positive trend favoring inquiry‐based instructional practices, particularly instruction that emphasizes student active thinking and drawing conclusions from data. Teaching strategies that actively engage students in the learning process through scientific investigations are more likely to increase conceptual understanding than are strategies that rely on more passive techniques, which are often necessary in the current standardized‐assessment laden educational environment. © 2009 Wiley Periodicals, Inc. J Res Sci Teach 47: 474–496, 2010

Nghiên cứu này đã khảo sát kết quả của một đơn vị tích hợp việc dạy rõ ràng các mô hình lý luận chung vào việc giảng dạy nội dung khoa học cụ thể. Cụ thể, bài báo này đã xem xét việc giảng dạy kỹ năng lập luận trong bối cảnh các tình huống khó xử trong di truyền học ở người. Trước khi học, chỉ có một thiểu số (16,2%) học sinh đề cập đến kiến thức sinh học chính xác và cụ thể trong việc xây dựng lập luận trong bối cảnh các tình huống khó xử về di truyền. Khoảng 90% học sinh đã thành công trong việc xây dựng các lập luận đơn giản. Một bài kiểm tra diễn ra sau khi giảng dạy đã hỗ trợ kết luận rằng việc tích hợp việc dạy rõ ràng các kỹ năng lập luận vào việc giảng dạy các tình huống khó xử trong di truyền học ở người nâng cao hiệu suất trong cả kiến thức sinh học và kỹ năng lập luận. Đã ghi nhận sự gia tăng về tần suất học sinh tham khảo kiến thức sinh học chính xác và cụ thể khi xây dựng lập luận. Nhóm học sinh tham gia thí nghiệm có điểm số cao hơn đáng kể so với nhóm so sánh trong bài kiểm tra kiến thức di truyền. Cũng có sự gia tăng về chất lượng lập luận của học sinh. Học sinh có thể chuyển giao khả năng lý luận được dạy trong bối cảnh di truyền sang bối cảnh các tình huống khó xử từ cuộc sống hàng ngày. Các hiệu ứng của tư duy siêu nhận thức và việc thay đổi quan điểm suy nghĩ của học sinh bằng cách điều chỉnh những gì được coi là có giá trị trong văn hóa lớp học được thảo luận. © 2002 John Wiley & Sons, Inc. J Res Sci Teach 39: 35–62, 2002

Recent arguments in science education have proposed that school science should pay more attention to teaching the nature of science and its social practices. However, unlike the content of science, for which there is well‐established consensus, there would appear to be much less unanimity within the academic community about which “ideas‐about‐science” are essential elements that should be included in the contemporary school science curriculum. Hence, this study sought to determine empirically the extent of any consensus using a three stage Delphi questionnaire with 23 participants drawn from the communities of leading and acknowledged international experts of science educators; scientists; historians, philosophers, and sociologists of science; experts engaged in work to improve the public understanding of science; and expert science teachers. The outcome of the research was a set of nine themes encapsulating key ideas about the nature of science for which there was consensus and which were considered to be an essential component of school science curriculum. Together with extensive comments provided by the participants, these data give some measure of the existing level of agreement in the community engaged in science education and science communication about the salient features of a vulgarized account of the nature of science. Although some of the themes are already a feature of existing school science curricula, many others are not. The findings of this research, therefore, challenge (a) whether the picture of science represented in the school science curriculum is sufficiently comprehensive, and (b) whether there balance in the curriculum between teaching about the content of science and the nature of science is appropriate. © 2003 Wiley Periodicals, Inc. J Res Sci Teach 40: 692–720, 2003

This article reviews current scholarship about how to promote change in instructional practices used in undergraduate science, technology, engineering, and mathematics (STEM) courses. The review is based on 191 conceptual and empirical journal articles published between 1995 and 2008. Four broad categories of change strategies were developed to capture core differences within this body of literature: disseminating curriculum and pedagogy, developing reflective teachers, enacting policy, and developing shared vision. STEM education researchers largely write about change in terms of disseminating curriculum and pedagogy. Faculty development researchers largely write about change in terms of developing reflective teachers. Higher education researchers largely write about change in terms of enacting policy. New work often does not build on prior empirical or theoretical work. Although most articles claim success of the change strategy studied, evidence presented to support these claims is typically not strong. For example, only 21% of articles that studied implementation of a change strategy were categorized as presenting strong evidence to support claims of success or failure of the strategy. These analyses suggest that the state of change strategies and the study of change strategies are weak, and that research communities that study and enact change are largely isolated from one‐another. In spite of the weak state of the literature, some conclusions related to the design of change strategies can be drawn from this review. Two commonly used change strategies are clearly not effective: developing and testing “best practice” curricular materials and then making these materials available to other faculty and “top‐down” policy‐making meant to influence instructional practices. Effective change strategies: are aligned with or seek to change the beliefs of the individuals involved; involve long‐term interventions, lasting at least one semester; require understanding a college or university as a complex system and designing a strategy that is compatible with this system. © 2011 Wiley Periodicals, Inc. J Res Sci Teach 48: 952–984, 2011

From the perspective of social cognitive theory, the motivation of students to learn science in college courses was examined. The students—367 science majors and 313 nonscience majors—responded to the Science Motivation Questionnaire II, which assessed five motivation components: intrinsic motivation, self‐determination, self‐efficacy, career motivation, and grade motivation. Exploratory and confirmatory factor analyses provided evidence of questionnaire construct validity. The motivation components, especially self‐efficacy, were related to the students' college science grade point averages. The science majors scored higher than the nonscience majors on all of the motivation components. Among both science majors and nonscience majors, men had higher self‐efficacy than women, and women had higher self‐determination than men. The findings suggest that the questionnaire is a valid and efficient tool for assessing components of students' motivation to learn science in college courses, and that the components play a role in students' science achievement. © 2011 Wiley Periodicals, Inc. J Res Sci Teach 48: 1159–1176, 2011

In this article we assert a potential research agenda for the teaching and learning of science as inquiry as part of the JRST series on reform in science education. Drawing on the theoretical frameworks of cognitive and sociocultural constructivism, cultural models of meaning, the dialogic function of language, and transformational models of teacher education, we propose that more research is needed in the areas of teachers' beliefs, knowledge, and practices of inquiry‐based science, as well as, student learning. Because the efficacy of reform efforts rest largely with teachers, their voices need to be included in the design and implementation of inquiry‐based curriculum. As we review the literature and pose future research questions, we propose that particular attention be paid to research on inquiry in diverse classrooms, and to modes of inquiry‐based instruction that are designed by teachers. © 2001 John Wiley & Sons, Inc. J Res Sci Teach 38: 631–645, 2001

Natural selection as a mechanism of evolution is a central concept in biology; yet, most nonbiology‐majors do not thoroughly understand the theory even after instruction. Many alternative conceptions on this topic have been identified, indicating that the job of the instructor is a difficult one. This article presents a new diagnostic test to assess students' understanding of natural selection. The test items are based on actual scientific studies of natural selection, whereas previous tests have employed hypothetical situations that were often misleading or oversimplified. The Conceptual Inventory of Natural Selection (CINS) is a 20‐item multiple choice test that employs common alternative conceptions as distractors. An original 12‐item version of the test was field‐tested with 170 nonmajors in 6 classes and 43 biology majors in 1 class at 3 community colleges. The test scores of one subset of nonmajors (n = 7) were compared with the students' performances in semistructured interviews. There was a positive correlation between the test scores and the interview scores. The current 20‐item version of the CINS was field‐tested with 206 students in a nonmajors' general biology course. The face validity, internal validity, reliability, and readability of the CINS are discussed. Results indicate that the CINS will be a valuable tool for instructors. © 2002 Wiley Periodicals, Inc. J Res Sci Teach 39: 952–978, 2002