Model‐based reasoning about energy: A fourth‐grade case study

We report a case study of model‐based reasoning in which a small group of fourth‐grade students analyzes the energy flow when a solar panel is used to power an electric motor that spins a propeller. In developing their explanation of energy flow, the students draw on a general model of energy developed collectively by their class in the course of an experimental classroom curriculum led by a trained teacher. They also construct a model‐based representation of the specific system under study. Their investigation and reasoning process exhibit all the features of authentic scientific model‐based inquiry, including the revision of their models to incorporate new information. In the course of their work the students recruit and seamlessly integrate nearly all of the practices of science designated in the Next Generation Science Standards. This case study provides an example of what modeling‐based teaching and learning can look like in an elementary school classroom. It also suggests that the study of energy offers a particularly promising context for developing students' use of science practices, especially the practice of developing and using models.     

A phenomenological case study of teacher candidate experiences during a yearlong teacher residency program

Abstract

This phenomenological case study investigated teacher candidates’ experiences in a yearlong undergraduate teacher residency program to identify candidate conceptualizations of the effective design elements of an intentionally created practice-based teacher education program. Such experiences are generally characterized by full-year co-teaching experiences in PK–12 classrooms alongside a mentor teacher within a district whose values closely align with the preparation program, while simultaneously taking relevant coursework with supporting university faculty . Researchers interviewed 16 teacher candidates to develop deeper understandings of the meaningful structures of the residency program as manifested through their experiences. Through an analysis of candidate statements, multiple key design elements and candidates’ perceived impact of the residency were unveiled. Findings demonstrate a paradigmatic challenge to current preparation models, and the potential of practice-base preparation, in particular teacher residency programs.     

Teaching nature of science explicitly in a first‐grade internship setting

This case study focused on a preservice teachers' (Morgan) efforts to explicitly emphasize nature of science (NOS) elements in her first‐grade internship classroom. The study assessed the change in first grade students' views of the inferential, tentative, and creative NOS as a result of the explicit instruction. Morgan held appropriate views of NOS, had the intention and motivation to teach NOS, and had a supporting experience explicitly emphasizing NOS embedded in physics content to peer college students. Data sources included weekly classroom observations of explicit NOS science lessons taught by Morgan, interview of Morgan to determine that her views of NOS were informed and that she would have the NOS content knowledge to teach in line with recommended reforms, and interviews of the first‐grade students pre‐ and postinstruction to determine the influence of Morgan's instruction on their views of observation and inference, the tentative NOS, and the creative and imaginative NOS. Data were analyzed to determine (a) the approaches Morgan used to emphasize NOS in her instruction, and (b) students' views of NOS pre‐ and postinstruction to track change in their views. It was found that Morgan was able to explicitly emphasize NOS using three teacher‐designed methods, and that the influence on student views of the inferential, tentative, and creative NOS was positive. Implications for teacher development are provided. © 2006 Wiley Periodicals, Inc. J Res Sci Teach 43: 377–394, 2006     

Assessing equity beyond knowledge‐ and skills‐based outcomes: A comparative ethnography of two fourth‐grade reform‐based science classrooms

When evaluating equity, researchers often look at the “achievement gap.” Privileging knowledge and skills as primary outcomes of science education misses other, more subtle, but critical, outcomes indexing inequitable science education. In this comparative ethnography, we examined what it meant to “be scientific” in two fourth‐grade classes taught by teachers similarly committed to reform‐based science (RBS) practices in the service of equity. In both classrooms, students developed similar levels of scientific understanding and expressed positive attitudes about learning science. However, in one classroom, a group of African American and Latina girls expressed outright disaffiliation with promoted meanings of “smart science person” (“They are the science people. We aren't like them”), despite the fact that most of them knew the science equally well or, in one case, better than, their classmates. To make sense of these findings, we examine the normative practice of “sharing scientific ideas” in each classroom, a comparison that provided a robust account of the differently accessible meanings of scientific knowledge, scientific investigation, and scientific person in each setting. The findings illustrate that research with equity aims demands attention to culture (everyday classroom practices that promote particular meanings of “science”) and normative identities (culturally produced meanings of “science person” and the accessibility of those meanings). The study: (1) encourages researchers to question taken‐for‐granted assumptions and complexities of RBS and (2) demonstrates to practitioners that enacting what might look like RBS and producing students who know and can do science are but pieces of what it takes to achieve equitable science education. © 2011 Wiley Periodicals, Inc., Inc. J Res Sci Teach 48: 459–485, 2011     

Turkish grade 10 students' and science teachers' conceptions of nature of science: A national study

This study aimed to assess grade 10 Turkish students' and science teachers' conceptions of nature of science (NOS) and whether these conceptions were related to selected variables. These variables included participants' gender, geographical region, and the socioeconomic status (SES) of their city and region; teacher disciplinary background, years of teaching experience, graduate degree, and type of teacher training program; and student household SES and parents' educational level. A stratified sampling approach was used to generate a representative national sample comprising 2,087 students and 378 science teachers. After establishing their validity in the Turkish context, participants were administered a questionnaire comprising 14 modified “Views on Science‐Technology‐Society” (VOSTS) items to assess their views of certain aspects of NOS. A total of 2,020 students (97%) and 362 teachers (96%) completed the questionnaire. Participant responses were categorized as “naïve,” “have merit,” or “informed,” and the frequency distributions for these responses were compared for various groupings of participants. The majority of participants held naïve views of a majority of the target NOS aspects. Teacher views were mostly similar to those of their students. Teacher and student views of some NOS aspects were related to some of the target variables. These included teacher graduate degree and geographical region, and student household SES, parent education, and SES of their city and geographical region. The relationship between student NOS views and enhanced economic and educational capitals of their households, as well as the SES status of their cities and geographical regions point to significant cultural (specifically Western) and intellectual underpinnings of understandings about NOS. © 2008 Wiley Periodicals, Inc. J Res Sci Teach 45: 1083–1112, 2008     

Negotiating science and engineering: an exploratory case study of a reform-minded science teacher

Engineering has been slowly integrated into K-12 science classrooms in the United States as the result of recent science education reforms. Such changes in science teaching require that a science teacher is confident with and committed to content, practices, language, and cultures related to both science and engineering. However, from the perspective of the science teacher, this would require not only the development of knowledge and pedagogies associated with engineering, but also the construction of new identities operating within the reforms and within the context of their school. In this study, a middle school science teacher was observed and interviewed over a period of nine months to explore his experiences as he adopted new values, discourses, and practices and constructed his identity as a reform-minded science teacher. Our findings revealed that, as the teacher attempted to become a reform-minded science teacher, he constantly negotiated his professional identities – a dynamic process that created conflicts in his classroom practices. Several differences were observed between the teacher’s science and engineering instruction: hands-on activities, depth and detail of content, language use, and the way the teacher positioned himself and his students with respect to science and engineering. Implications for science teacher professional development are discussed.     

Gender differences in inference generation by fourth‐grade students

The purpose of this study was to determine if there are gender differences among elementary school‐aged students in regard to the inferences they generate during reading. Fourth‐grade students (130 females; 126 males) completed think‐aloud tasks while reading one practice and one experimental narrative text. Females generated a larger number and a greater proportion of reinstatement inferences than did males (Cohen's d = .34, p = .01; Cohen's d = .26, p = .04, respectively). In contrast, there was no evidence for gender differences in other types of think‐aloud responses. These findings suggest that males and females differ in their use of cognitive processes that underlie reading comprehension, particularly with respect to the likelihood of retrieval of information from episodic memory.     

Beginning secondary science teacher induction: A two‐year mixed methods study

Those who study secondary science teachers are often concerned with preservice or in‐service teacher development. Science teacher educators have acknowledged that this focus is limited, as the induction years of beginning teachers are an important component of teacher development. This mixed methods study focuses on the induction years of beginning content specialists, with the intention of adding to the literature in this underexamined area. The secondary science teachers in this study were followed during their first and second year of teaching in order to understand the changes in their beliefs, pedagogical content knowledge (PCK) and practices as a group, and as they participated in different induction programs. Analysis by induction program revealed that first year teachers who participated in science specific induction programs strengthened their beliefs, PCK, and practices. By the end of the second year, regardless of program, most of the teachers shared similar beliefs and PCK. However, the teachers in the science specific induction programs continued to enact more interactive learning environments that had more investigations and laboratories than did their peers in the other induction programs. For those who work with beginning science teachers, this study suggests that the induction of science specialists is an important area of work. It also explores the complex process of induction, and calls for more research into how beginning secondary science teachers learn and what types of induction experiences can best support beginning science teachers. © 2011 Wiley Periodicals, Inc. J Res Sci Teach 48: 1199–1224, 2011     

From science teacher to technology facilitator: A case study of Katherine

Technology education has a new focus in New Zealand with the publication of the draft Technology Curriculum. Biotechnology is mostly taught by science teachers in New Zealand secondary schools. This study monitors both the author's and the teacher's evolving perspective of technology education from that of applied science to technology and the influence of the draft Technology Curriculum on this process. Specializations: biotechnology/technology education, science education     

Teaching and nurturing: changing conceptions of self as teacher in a case study of becoming a teacher

Interest is growing in better understanding how teachers think and how they come to think like teachers. From a theoretical orientation informed by insights gained from symbolic inter‐actionism, recent research in the role metaphors play in self‐understanding, and schema theory, the authors present a case study of the first year of teaching of a divorced mother of five young children. Over the course of the year this teacher's understanding of herself as teacher changes, as indicated by changes in her personal teaching metaphor, teacher is nurturer. The reasons for these changes are explored. Of particular note is the struggle this teacher has balancing the demands of home and work. Finally, some implications for teacher education are discussed.     

Teaching nature of science through inquiry: Results of a 3‐year professional development program

This study assessed the influence of a 3‐year professional development program on elementary teachers' views of nature of science (NOS), instructional practice to promote students' appropriate NOS views, and the influence of participants' instruction on elementary student NOS views. Using the VNOS‐B and associated interviews the researchers tracked the changes in NOS views of teacher participants throughout the professional development program. The teachers participated in explicit–reflective activities, embedded in a program that emphasized scientific inquiry and inquiry‐based instruction, to help them improve their own elementary students' views of NOS. Elementary students were interviewed using the VNOS‐D to track changes in their NOS views, using classroom observations to note teacher influences on student ideas. Analysis of the VNOS‐B and VNOS‐D showed that teachers and most grades of elementary students showed positive changes in their views of NOS. The teachers also improved in their science pedagogy, as evidenced by analysis of their teaching. Implications for teacher professional development programs are made. © 2006 Wiley Periodicals, Inc. J Res Sci Teach 44: 653–680, 2007     

From veteran parent to novice teacher: A case study of a student teacher

This paper presents a case of a secondary student teacher in a midwestern school in the United States. She was one of the growing number of women who are making the decision to become professionals later in life, after having experienced roles such as marriage, parenting, and other jobs. The study focuses on her adaptation to the role of a teacher and factors that influenced the adaptation process. The student teacher's development is traced, during the 10-week term of student teaching, through changes in her teaching and related changes in the language with which she described her experiences as a student teacher. These changes included increased time devoted to the impact of instruction on order in the class, and less time to classroom management alone. Her adaptation to the role of teacher was influenced significantly by the personal resources she had due to her age and life experience. They provided her with the strength to operate according to own values, even when they differed dramatically from those of her cooperating teacher.     

Developing and acting upon one's conception of the nature of science: A follow‐up study

This study aimed to delineate the factors mediating the translation of preservice teachers' conceptions of the nature of science into instructional planning and classroom practice. Additionally, the study assessed the influence of temporally separating teaching preservice teachers about the nature of science and teaching them how to address it instructionally. This latter intervention was based on the results of a previous investigation. Prior to student teaching, the 13 participants responded to an open‐ended questionnaire designed to assess conceptions of the nature of science. Throughout student teaching, daily lesson plans, classroom videotapes, portfolios, and supervisors' weekly clinical observation notes were collected and searched for explicit instances of nature of science planning and/or instruction. Following student teaching, participants were interviewed to validate their responses to the open‐ended questionnaire, identify factors that mediate the translation of their conceptions of the nature of science into classroom teaching, and explicate their pedagogical preferences for teaching the nature of science. Participants possessed adequate understanding of several aspects of the nature of science and, contrary to the results of the earlier investigation, most did not conflate the nature of science with science processes. Furthermore, several participants explicitly addressed some aspects of the nature of science during classroom instruction. Participants, however, failed to include the nature of science among their instructional objectives and did not make a concerted effort to assess student understandings. © 2000 John Wiley & Sons, Inc. J Res Sci Teach 37: 563–581, 2000     

Educating the teacher educator—A Ugandan case study

Who educates teacher educators? How are teacher educators educated and prepared for their roles and tasks? This article uses a review of a two-year full-time Diploma in Teacher Education (DTE) for teacher educators in Uganda to engage with these questions. The article begins with a presentation of the Ugandan teacher education context and a literature review, focusing mainly on teacher educator knowledge, preparation, roles and tasks. It then presents the review process and discusses the main findings that emerged, exploring their implications for the education of teacher educators in Uganda and internationally. The main implications concern the critical role of teacher education pedagogy, context, teacher educator knowledge, tasks and roles, reflective practice, practitioner research, and the background, capacities and education of the educator of teacher educators.     

Transitioning from practicing teacher to teacher leader: a case study

Given US students’ lack of international competitiveness in mathematics and science, many states have adopted the Common Core State Standards for Mathematics (CCSSM). To help ensure that the Standards for Mathematical Practice within the CCSSM and effective teaching practices are implemented appropriately, many teachers are emerging as teacher leaders with the intent of supporting teachers with this implementation. Unfortunately, not all of these teachers are necessarily prepared in the field of teacher leadership. Recognizing the importance of having well-prepared teacher leaders, this article describes the case of Ms. Hodges, as she transitioned from mathematics teacher to teacher leader. Data revealed that several factors affected Ms. Hodges’ transition, some positively and others negatively. These results as well as implications for teacher leader development are provided.