More than a conversation: using cogenerative dialogues in the professional development of high school chemistry teachers

This paper focuses on content-based and pedagogical instructors’ use of cogenerative dialogues to improve instructional practice and to evaluate program effectiveness in a professional development program for high school chemistry teachers. We share our research findings from using cogenerative dialogues as an evaluative tool for general assessment of various program-related issues. We discuss how engaging students in cogenerative dialogues improved teaching and learning in chemistry and chemistry education courses. This research provides insights and direction for improving content-based professional development programs for science teachers and the learning experiences of high school science students. Cogenerative dialogue has the potential to expand evaluation methodologies that will position participants more centrally in not only the collection of data, but also the analysis of these data to catalyze transformative practices in educational programs.

Using Cogenerative Dialogs to Improve Science Teaching and Learning: Challenges and Solutions in High School Students’ Internships

Internships in science research settings have received increasing attention as a means of helping students construct appropriate understandings, practices, tools, and language in scientific activities. To advance student–scientist partnerships beyond the status quo, the study aimed to investigate how cogenerative dialogs (cogens) may help high school students and scientists identify and address challenges collectively. The analysis identified nine major challenges discussed during cogens: (1) the quality and progress of scientific practice in laboratories, (2) the quality of scientists’/assistants’ instructions in classrooms, (3) the quality of student participation in classrooms and homework, (4) students’ absences, including arriving late or leaving early, (5) the quality of administrative support, (6) preparation for scientific presentations, (7) the process of deciding project topics, (8) students’ peer interactions and communication, and (9) students’ physiological needs. The three most salient challenges were “the quality and progress of scientific practice in laboratories” (39%), “the quality of scientists’/assistants’ instructions in classrooms” (20%), and “the quality of student participation in classrooms and homework” (17%). The study shows that cogens allowed students and scientists to agree on teaching modifications that positively influenced teaching and learning processes during the internship, such that issues were reduced from the beginning to the closing stages. Importantly, the challenges and solutions identified by students and scientists in this study provide accounts of first-hand experience as well as insights to aid program directors or coordinators in designing a learning environment that can foster effective practice for internships by avoiding the issues identified in the study.     

Using cogenerative dialogues to improve coteaching for language learner (LL) students in an inclusion science classroom

This paper presents findings from a study conducted in an urban elementary school in the United States with an English language learner (ELL) student and two teachers engaged in collaborative teaching in an inclusion science classroom. This study examines the efficacy of utilising cogenerative dialogues between an ELL student and his science teacher and English as second language teacher to improve instructional practices enacted during coteaching. Drawing from field notes, teacher and student interviews, and video captured during cotaught science lessons and during cogenerative dialogues between the student and his coteachers, we examined the ways in which cogenerative dialogue expands teachers’ agency to adapt curriculum and implement instructional strategies that can better meet the needs of their students. At the same time, we examined the ways in which participation in cogenerative dialogues with his teachers expanded this student’s agency as a science learner and a language learner.     

Capturing essential understandings of the urban science learning environment

This research is distinctive in that a mixed-methods approach, employing both cogenerative dialogues and student responses from the Constructivist Learning Environment Survey (CLES), was used to help to understand 9th grade urban students?? experiences in their biochemistry class in New York City. Factor analyses of student responses demonstrated that empirically there were four robust scales rather than five. Qualitative analyses, using cogenerative dialogues and informal interviewing, demonstrated that more adaptable forms of teaching, learning and assessing could support a variety of students. Shared with students, the contents of the CLES and cogenerative dialogues created opportunities for understanding ontologies and helped to create, access and appropriate resources that assist in bringing about success in the science classroom.     

Where practice and theory intersect in the chemistry classroom: using cogenerative dialogue to identify the critical point in science education

This paper argues for an inclusive model of science education practice that attempts to facilitate a relationship between “science and all” by paying particular attention to the development of the relationship between the teacher, students and science. This model hinges on the implementation of cogenerative dialogues between students and teachers. Cogenerative dialogues are a form of structured discourse in which teachers and students engage in a collaborative effort to help identify and implement positive changes in classroom teaching and learning practices. A primary goal of this paper is to introduce a methodological and theoretical framework for conducting cogenerative dialogue that is accessible to classroom teachers and their students. I propose that researchers must learn to disseminate their findings to teachers in ways that are practical, in that they provide teachers with information needed to make concrete connections between the research and their teaching, while continuing to make available the theories that support their findings. Using an integration research framework in conjunction with a temporality of learning model, I introduce a method of disseminating research findings that provides both classroom teachers and researchers with access to different forms of knowledge about cogenerative dialogues in the same paper. In doing so, this article examines the relationships between teacher knowledge and researcher knowledge by exploring the practical application of cogenerative dialogues for classrooms teachers and the theoretical implications of using cogenerative dialogues for researchers.

High school students presenting science: An interactional sociolinguistic analysis

Presenting science is an authentic activity of practicing scientists. Thus, effective communication of science is an important skill to nurture in high school students who are learning science. This study examines strategies employed by high school students as they make science presentations; it assesses students' conceptual understandings of particular science topics through their presentations and investigates gender differences. Data are derived from science presentation given by eight high school students, three females and five males who attended a summer science program. Data sources included videotaped presentations, ethnographic fieldnotes, interviews with presenters and members of the audience, and presenter notes and overheads. Presentations were transcribed and submitted to discourse analysis from an interactional sociolinguistic perspective. This article focuses on the methodology employed and how it helps inform the above research questions. The author argues that use of this methodology leads to findings that inform important social-communicative issues in the learning of science. Practical advice for teaching students to present science, implications for use of presentations to assess conceptual learning, and indications of some possible gender differences are discussed.     

Forum: dialogue about dialogue—cogeneration, research and science education

This forum discussion focuses on seven themes drawn from Sonya’s fascinating paper: the terminology of “cogenerative dialogues,” the roles of participants and their power relations within such dialogues, the use of metaphor and analogy in the paper, science and science education for all students, the ways in which students’ expectations about learning change in innovative classrooms, teacher research and the “theory-practice gap,” and the tension between conducting cogenerative dialogues with individual students or with whole classes. These themes by no means exhaust the ideas in Sonya’s paper, but we feel that they have allowed us to explore the classroom research she reports, and to extend our discussion beyond the paper to explore some of these themes more broadly.     

Coherence,contradiction, and the development of school science identities

This study demonstrates the potential for collaborative research among participants in local settings to effect positive change in urban settings characterized by diversity. It describes an interpretive case study of a racially, ethnically, and socioeconomically diverse eighth grade science classroom in an urban magnet school in order to explore why some of the students did not achieve at high levels and identify with school science although they were both interested in and knowledgeable about science. The results of this study indicated that structural issues such as the school's selection process, the discourses perpetuated by teachers, administrators, and peers regarding “who belongs” at the school, and negative stereotype threat posed obstacles for students by highlighting rather than mitigating the inequalities in students' educational backgrounds. We explore how a methodology based on the use of cogenerative dialogues provided some guidance to teachers wishing to alter structures in their classrooms to be more conducive to all of their students developing identities associated with school science. Based on the data analysis, we also argue that a perspective on classrooms as communities of practice in which learning is socially situated rather than as forums for competitive displays, and a view of students as valued contributors rather than as recipients of knowledge, could address some of the obstacles. Recommendations include a reduced emphasis on standardized tasks and hierarchies, soliciting unique student contributions, and encouraging learning through peripheral participation, thereby enabling students to earn social capital in the classroom. © 2010 Wiley Periodicals, Inc. J Res Sci Teach 47: 1209–1228, 2010     

Investigating Students’ Learning Through Co-designing with Technology

Involving students in the co-design of educational curricula and practices can benefit both students and teachers. Students who participate in co-design may show better learning or increased agency or engagement. In the present study, we investigated what kind of science knowledge or practices can be learned by student co-designers while engaging in co-design practices and how that learning happens with six high school students. We created a model to guide the analysis of students’ learning with technology in co-designing processes. The results revealed that students learned engineering design process even if no explicit instruction on engineering learning was given. Also, our analysis suggested that co-designing with technology enabled learning of the engineering design process and potentially furthered learning of science because it promoted knowledge integration. The results have implications for understanding and enhancing engineering design and science learning through co-designing with technology.

     

Activity features of high school students’ science learning in an open-inquiry-based internship programme

Science internships where students work with scientists have been suggested to have many positive impacts on students’ science learning. However, little research has been conducted to investigate the types of interactions that are beneficial for the development of science knowledge through an authentic internship experience. The purpose of this study was to illustrate the key features of dynamic interactions and activities involved in an open-inquiry-based internship programme for high school students. Drawing on cultural-historical activity theory, we aimed to describe the features of the internship activity system in terms of the moments of subject, object, tools, community, rules, division of labour, and outcome. Our analysis suggests that the activity system of the university internship has unique features that promote optimal science learning opportunities. The implications of these unique features are discussed and suggestions are made to improve K–12 science education.     

Design of a student lab program for nanoscience and technology – an intervention study on students’ perceptions of the Nature of Science,the Nature of Scientists and the Nature of Scientific Inquiry

Background: This article describes the design and the evaluation of a student lab program on the topic of nanoscience and technology (NST), mainly focusing on Nanoscience and its applications. The program was designed for students in grades 8–10 and was part of a larger outreach program of the Collaborative Research Center ‘Function by Switching’ at Kiel University. The Model of Educational Reconstruction (MER) served as a framework for the research-based design of the student lab.

Purpose: We aimed to develop an authentic science activity in the area of NST in order to support scientific inquiry learning and to provide a deeper understanding of scientific topics.

Sample: A total of 154 secondary school students from grades 8–10 of seven different secondary schools participated in this study.

Design and methods: A pre-post questionnaire with six subscales on students’ perceptions of the Nature of Science (NOS), Scientific Inquiry (NOSI) and the involved scientists (NOST) in the area of nanoscience and nanotechnology was applied.

Results: Results show that the applied explicit and reflective approach embedded in the nanoscience content significantly improved the participating students’ perceptions of NOS, NOSI and NOST facets. After the lab visit, students’ answers corresponded to a more adequate perception of today’s science and scientists. Some gender differences in learning gains were also detected.

Conclusion: The study served its main purpose which was to investigate a well-balanced strategy to develop authentic out-of-school-learning environments with a focus on NOS/NOSI/NOST. Testing students’ perceptions of the nature of nanoscience provided insights into students’ worlds and served as feedback for the lab program. The outcomes of this study might help to better understand and further develop authentic (nano)science programs in out-of-school settings and science outreach programs.     

Development,Implementation, and Outcomes of an Equitable Computer Science After-School Program: Findings From Middle-School Students

Current policy efforts that seek to improve learning in science, technology, engineering, and mathematics (STEM) emphasize the importance of helping all students acquire concepts and tools from computer science that help them analyze and develop solutions to everyday problems. These goals have been generally described in the literature under the term computational thinking. In this article, we report on the design, implementation, and outcomes of an after-school program on computational thinking. The program was founded through a partnership between university faculty, undergraduates, teachers, and students. Specifically, we examine how equitable pedagogical practices can be applied in the design of computing programs and the ways in which participation in such programs influence middle school students' learning of computer science concepts, computational practices, and attitudes toward computing. Participants included 52 middle school students who voluntarily attended the 9-week after-school program, as well as four undergraduates and one teacher who designed and implemented the program. Data were collected from after-school program observations, undergraduate reflections, computer science content assessments, programming products, and attitude surveys. The results indicate that the program positively influenced student learning of computer science concepts and attitudes toward computing. Findings have implications for the design of effective learning experiences that broaden participation in computing. (Keywords: computational thinking, programming, middle school, mixed methods)     

A qualitative study of middle school students' perceptions of factors facilitating the learning of science: Grounded theory and existing theory

The purpose of this study was to explore middle school students' perceptions of what factors facilitated their learning of science. Florida's Educational Reform Act of 1983 funded programs providing the state's precollege students with summer learning opportunities in science. mathematics, and computers. The programs were intended to encourage the development of creative approaches to the teaching of these disciplines. Under this program, between 50 and 60 high-achieving middle school students were in residence on the University of South Florida campus for 12 consecutive days of study in the World of Water (WOW) program. There were two sessions per summer involving a total of 572 participants. Eighi specially trained teachers were in residence with the students. Between 50 and 70 experts from the university, government. business, and industry interacted with the students each year in an innovative science/technology/society (STS) program. An assignment toward the close of the program asked students to reflect on their experiences in residence at the university and write an essay comparing learning in the WOW program to learning in their schools. Those essays were the base for this study. This was a qualitative study using a discursive approach to emergent design to generate grounded theory. Document review, participant observation, and open-ended interviews were used to gather and triangulate data in five phases. Some of the factors that middle school students perceived as helpful to learning science were (a) experiencing the situations about which they were learning; (b) having live presentations by professional experts; (c) doing hands-on activities: (d) being active learners; (e) using inductive reasoning to generate new knowledge; (f) exploring transdisciplinary approaches to problem solving; (g) having adult mentors; (h) interacting with peers and adults; (i) establishing networks; (j) having close personal friends who shared their interest in learning; (k) trusting the individuals in their learning environment, including adults and students; and (1) experiencing a sense of self-reliance. The preceding information was used to generate a series of hypotheses which were woven into a theoretical model. This model suggests that middle school science teacher education would be enhanced by helping prospective and in-service teachers develop and implement strategies that build trust, provide immersion in learning, and use inductive reasoning. This model is currently being used as the theoretical base to convert a traditional junior high school in the South to a middle school.     

Cultivation of science identity through authentic science in an urban high school classroom

This study examined how a contextually based authentic science experience affected the science identities of urban high school students who have been marginalized during their K-12 science education. We examined students’ perceptions of the intervention as an authentic science experience, how the experience influenced their science identity, as well as their perceptions about who can do science. We found that the students believed the experience to be one of authentic science, that their science identity was positively influenced by participation in the experience, and that they demonstrated a shift in perceptions from stereotypical to more diverse views of scientists. Implications for science education are discussed.     

Impact of a Scientist–Teacher Collaborative Model on Students,Teachers, and Scientists

Collaborations between the K-12 teachers and higher education or professional scientists have become a widespread approach to science education reform. Educational funding and efforts have been invested to establish these cross-institutional collaborations in many countries. Since 2006, Taiwan initiated the High Scope Program, a high school science curriculum reform to promote scientific innovation and inquiry through an integration of advanced science and technology in high school science curricula through partnership between high school teachers and higher education scientists and science educators. This study, as part of this governmental effort, a scientist–teacher collaborative model (STCM) was constructed by 8 scientists and 4 teachers to drive an 18-week high school science curriculum reform on environmental education in a public high school. Partnerships between scientists and teachers offer opportunities to strengthen the elements of effective science teaching identified by Shulman and ultimately affect students’ learning. Mixed methods research was used for this study. Qualitative methods of interviews were used to understand the impact on the teachers’ and scientists’ science teaching. A quasi-experimental design was used to understand the impact on students’ scientific competency and scientific interest. The findings in this study suggest that the use of the STCM had a medium effect on students’ scientific competency and a large effect on students’ scientific individual and situational interests. In the interviews, the teachers indicated how the STCM allowed them to improve their content knowledge and pedagogical content knowledge (PCK), and the scientists indicated an increased knowledge of learners, knowledge of curriculum, and PCK.     

“I didn’t know water could be so messy”: coteaching in elementary teacher education and the production of identity for a new teacher of science

Through the examination of the experiences of a pre-service teacher participating in a field-based science methods course, we make evident the ways in which a combination of collaborative teaching experiences and reflexive dialogues allowed for the evolution and transformation of her identity. This teacher is Johaira Lara, the second author of this paper, and we have engaged in a cowriting approach that has created layers of writings over time, with the focus of providing evidence of her changing perceptions and understandings of teaching and learning science. We describe the ways coteaching and cogenerative dialogues provided the opportunity for Johaira to examine and reconsider her views on science teaching, and mediated the production and transformation of her identity. We offer an evolving analysis of her identity transformation related to specific aspects of the course that were pivotal for her emergence as an elementary teacher of science.     

How teaching science using project-based learning strategies affects the classroom learning environment

This study involved 458 ninth-grade students from two different Arab middle schools in Israel. Half of the students learned science using project-based learning strategies and the other half learned using traditional methods (non-project-based). The classes were heterogeneous regarding their achievements in the sciences. The adapted questionnaire contained 38 statements concerning students’ perceptions of the science classroom climate. The results of the study revealed that students who learned sciences by project-based teaching strategies perceived their classroom learning climate as significantly more Satisfying and Enjoyable, with greater Teacher Supportiveness, and the Teacher–Student Relationships as significantly more positive. The differences between the experimental (project-based learning strategies) and control (non-project) groups regarding their perceptions of the science classroom learning climate could be explained by differences between the two science teaching and learning strategies.     

Forum: structure, agency, and the development of students’ identities as learners

In this forum, we discuss the ways in which the culture of science has become conflated with categorical groupings of students according to race, class, and gender – so as to better understand how Black female students from economically disadvantaged backgrounds may become alienated from dominant school discourses that emphasize college and non-college bound trajectories. In addition, we examine the power and limitations of creating spaces inside and outside of science classrooms that value student discourses, goals, and ways of being. Specifically, we debate whether cogenerative dialogues can allow for (a) conscious critical conversations that cut across student, teacher and administration levels, (b) expanded possibilities for local action, and (c) the building of solidarity and respect amongst stakeholders.