Meeting linguistic challenges in the science classroom: pre-service ESL teachers' strategies

This study explores the perceptions and challenges of Malaysian pre-service teachers teaching science in a second language. A qualitative case study method was used with multiple sources of data to provide insights into the challenges that a group of pre-service teachers faced during their teaching practicum. The pre-service teachers had to overcome various challenges that arose due to factors such as lack of competency in the medium of instruction and the students' varying levels of language ability. In addressing the challenges faced, they employed various strategies, including code switching and mixing, teacher-student collaboration, rephrasing and re-emphasizing, the use of instructional aids, and the use of analogies. The evidence presented in this study suggests that attention should be given to addressing the English language policy in the science teacher education programme.     

Forging inclusive practice in ethnically-segregated school systems: lessons from one multiethnic,bilingual education classroom in Sri Lanka

ABSTRACT

This paper offers a perspective on bilingual education (BE) as inclusive education. Ethnolinguistically-separated schools and classrooms in Sri Lanka resulted from an enduring, mother tongue instruction policy which abetted a deeply ethnically-divided nation. More recently, Sri Lanka has experimented with a BE programme in pursuit of enriching the perceived value of the local mother tongues as well as building students’ knowledge of English as a global language. This article presents analysis of the inclusive practice of two Sri Lankan BE teachers in their attempts to advance social cohesion through bilingual education. We demonstrate the logic of practice focussing on four features of the teachers’ work: promoting interethnic relations through regular change of seating arrangements; equal delegation of responsibilities and absence of favouritism; cooperative group work in ethnically heterogeneous groups; and, promoting heteroglossic language practices or translanguaging. The positive, inclusive consequences of these practices are corroborated by focus group data gathered from students in the school. We argue that teachers have a significant role in changing the logic of practice in the classroom, and that the implicit rules teachers encode in their pedagogy can reorient exclusionary, ethnocentric identity positioning towards more inclusive, supraethnic identities.     

Exploring the reliability of generic and content-specific instructional aspects in physical education lessons

Heightened accountability pressures and an increased emphasis on teaching quality have directed scholarly attention to scrutinizing instruction, particularly with respect to issues of validity and reliability. However, these attempts have largely been directed toward “core” content areas and investigated generic or content-specific instructional aspects separately. Focusing on a less explored area, physical education, and concurrently attending to both instructional aspects, in this exploratory study, we examined whether the optimal lesson-rater combination needed to obtain reliable teaching-quality estimates differs depending on the type of instructional aspects considered. Data analysis of 147 lessons using generalizability theory suggested that either a 3-lesson-2-rater or a 4-lesson-1-rater combination yields sufficiently reliable estimates for nearly all dimensions examined (generic or content specific). Quality of student practice, however, required 11 lessons scored by 2 raters. These findings underline the importance of examining individual dimensions within a given observational instrument and the merit of carefully selecting and training raters.     

Exploring science teaching in interaction at the instructional core

Recent instructional reforms in science education aim to change the way students engage in learning in the discipline, as they describe that students are to engage with disciplinary core ideas, crosscutting concepts, and the practices of science to make sense of phenomena (NRC, 2012). For such sensemaking to become a reality, there is a need to understand the ways in which students' thinking can be maintained throughout the trajectory of science lessons. Past research in this area tends to foreground either the curriculum or teachers' practices. We propose a more comprehensive view of science instruction, one that requires attention to teachers' practice, the instructional task, and students' engagement. In this study, by examining the implementation of the same lesson across three different classrooms, our analysis of classroom videos and artifacts of students' work revealed how the interaction of teachers' practices, students' intellectual engagement, and a cognitively demanding task together support rigorous instruction. Our analyses shed light on their interaction that shapes opportunities for students' thinking and sensemaking throughout the trajectory of a science lesson. The findings provide implications for ways to promote rigorous opportunities for students' learning in science classrooms.     

Puppets in science lessons Experiences and stories from Norwegian teachers who are using puppets

Ten teachers, from preschool to secondary school have tried out puppets as a stimulus in science lessons. Data were gathered by teachers answering a questionnaire and by interviewing the teachers. We report what teachers have experienced by using puppets in science classrooms and in science activities in preschools. Data indicate that the puppet can be used to stimulate science both in preschool, primary school and secondary school. Probably the puppet must be used in different ways in preschool and primary school than in secondary school to get the pupils to accept them. This pilot study has given us courage and ideas to start a following-up study in using puppets in science.     

A sense of place in the science classroom

Place‐based science education engages with the laboratories of complex reality where natural processes combine with social practice, going beyond the physical world, to encompass the meanings and sense of attachment local residents feel for places. This brief report describes how a university science methods class in a primary teacher training programme situated scientific understandings in the rich cultural context of the historically rural and socio‐economically disadvantaged area of Galicia in north‐western Spain, where agrarian traditions continue to influence local culture. Focusing on student responses to two assignments, this brief report explores how the preparation of lesson plans related to food and environmental investigation projects served to integrate aspects of the natural, social and cultural environment to foster a critical pedagogy of place.     

Beliefs about learning and enacted instructional practices: An investigation in postsecondary chemistry education

While research on and development of evidence‐based instructional practices (EBIPs) in STEM education has flourished, implementation of these practices classrooms has not been as prolific. Using the teacher‐centered systemic reform model as a framework, we explore the connection between chemistry instructors’ beliefs about teaching and learning and self‐efficacy beliefs, and their enacted classroom practices. Postsecondary chemistry faculty present a unique population for the study because of their role in teaching prerequisite courses, such as general and organic chemistry, which are key to many science major fields. A measure of teacher beliefs and self‐efficacy was administered to a national survey of postsecondary chemistry faculty members. Instructional practices used in a chemistry course were also collected via self‐report. While instructional practices were not directly observed, a cluster analysis of our data mirrors patterns of instructional practices found in observation‐based studies of chemistry faculty. Significant differences are found on teacher thinking and self‐efficacy measures based on enacted instructional practices. Results support the hypothesized connection between beliefs and instructional practice on a larger scale than in previous studies of this relationship, bolstering the evidence for the importance of this relationship over previously criticized results. These results present a call for reform efforts on fostering change from its core, that is, the beliefs of those who ultimately adopt EBIPs. Dissemination and design should incorporate training and materials that highlight the process by which faculty members interpret reformed practices within their belief system, and explore belief change in the complex context of education reform.     

Investigating the relationship between instructional practices and science achievement in an inquiry-based learning environment

ABSTRACT

This study investigates the discrete effects of inquiry-based instructional practices that described the PISA 2015 construct ‘inquiry-based instruction’ and how each practice, and the frequency of each practice, is related to science achievement across 69 countries. The data for this study were drawn from the PISA 2015 database and analysed using hierarchical linear modelling (HLM). HLMs were estimated to test the contribution of each item to students’ science achievement scores. Some inquiry practices demonstrated a significant, linear, positive relationship to science achievement (particularly items involving contextualising science learning). Two of the negatively associated items (explaining their ideas and doing experiments) were found to have a curvilinear relationship to science achievement. All nine items were dummy coded by the reported frequency of use and an optimum frequency was determined using the categorical model and by calculating the inflection point of the curvilinear associations in the previous model e.g. students that carry out experiments in the lab in some lessons have higher achievement scores than students who perform experiments in all lessons. These findings, accompanied by detailed analyses of the items and their relationships to science outcomes, give stakeholders clear guidance regarding the effective use of inquiry-based approaches in the 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.

Lesson study for accessible science: Building expertise to improve practice in inclusive science classrooms

The Lesson Study for Accessible Science (LSAS) project created middle school teams comprised of both science and special education teachers who engaged in collaborative work to improve instruction in inclusive classrooms. The intervention is based on Lesson Study, a professional development approach that originated in Japan, which supports the systematic examination of practice and student understanding. Using an experimental design, teams of teachers were randomly assigned to the LSAS intervention or to a wait‐list comparison group. The results of this study suggest that science and special educators in the LSAS intervention were able to generate more accommodations for students with learning disabilities, and they increased their ability to set an instructional context and adapt an instructional plan to meet science learning goals for all students in an inclusive classroom. They did not, however, show significant increases in their knowledge of science content or learning disabilities. © 2012 Wiley Periodicals, Inc. J Res Sci Teach 49: 1012–1034, 2012     

Socioscientific issues via controversy mapping: bringing actor-network theory into the science classroom with digital technology

ABSTRACT

What are the current challenges and opportunities for bringing actor-network theory (ANT) into issues-based science education? This article discusses experiences gained from introducing an educational version of ANT deploying digital technology into an upper secondary school science class. This teaching innovation, called controversy mapping, has been pioneered in different contexts of higher education before being adapted to school education. Experimenting with controversy mapping in a Swedish science class raised both conceptual and practical issues. These centre on: (1) how ANT-inspired controversy mapping redesigns the citizenship training enacted by institutionalized approaches to issues-based education as socioscientific issues (SSI); (2) how controversy mapping reconfigures the interdisciplinarity of issues-based science education; and (3) how controversy mapping displaces scientific literacy and knowledge of the nature of science as guiding concerns for teaching in favour of new preoccupations with digital literacy and digital tools and methods as contemporary infrastructures of free and open inquiry.     

从科学的本质看科学教育的发展趋势

科学本质上是一种大科学,它包括科学知识、科学活动及其与社会的关系。大科学观决定了科学教育应从分科走向综合。科学教育的综合不仅是自然学科内部、自然学科之间的综合,还应包括与人文、社会学科之间的综合,实际的综合程度则应视具体情况而定。