The Contribution of Trade Books to Early Science Literacy: In and Out of School

Lifelong science literacy begins with attitudes and interests established early in childhood. The use of trade books (i.e., a literary work intended for sale to the general public) in North American school classrooms to support the development of science literacy invites an examination of the quality of science content disseminated to students. A total of 116 trade books were examined to: (a) determine the degree to which science trade books complement expected science knowledge outcomes outlined in school curricula, and (b) compare trade book content to the goals of scientific literacy. Analysis across four science topics, Dinosaurs, Space, Inheritance, and Growth and Life Properties, revealed that this body of children’s literature is inconsistent in its coverage of curricular goals and elements of scientific literacy. Because trade books represent children’s first exposure to science, these shortcomings should be addressed if these books are to be maximally effective in promoting science literacy. Implications for using trade books in the classroom are discussed.

Identification,Interpretation—Evaluation,Response: An alternative framework for analyzing teacher discourse in science

Although research has come to recognize the importance of studying classroom-based student–teacher discourse in science, the emphasis remains largely on teachers' abilities to ask questions and provide students with feedback, or on students' abilities to ask questions or engage in argumentative discourse. Consequently, little research has focused on the discourse elements relating to teacher–student discourse interactions. In this article, we argue for a shift of research attention toward describing what the teacher is responding to (Identification of student inquiry), the process of deciding how to respond (Interpretation—Evaluation of student inquiry), and how the teacher is responding (Response to student inquiry). We propose a new methodological approach for studying teacher discourse, which involves a framework we developed while analyzing 1,385 minutes of fifth grade, whole-class science conversations covering a 2-year period and facilitated by an experienced science teacher. Then, as a case in point, we applied our framework to the teacher discourse data of the study, aiming to show that the framework can be a useful tool for examining how a teacher supports students' inquiry.     

Explicit Nature of Science and Argumentation Instruction in the Context of Socioscientific Issues: An effect on student learning and transfer

The purpose of the study was two-fold: to (a) investigate the influence of explicit nature of science (NOS) and explicit argumentation instruction in the context of a socioscientific issue on the argumentation skills and NOS understandings of students, and (b) explore the transfer of students' NOS understandings and argumentation skills learned in one socioscientific context into other similar contexts (familiar and unfamiliar). Participants were a total of 121 seventh grade students from two schools. The treatment involved an eight-week unit about the water usage and safety, which was taught by two teachers for two intact groups (Treatments I and II). Explicit NOS instruction was integrated for all groups. However, only the Treatment I groups had the additional explicit argumentation instruction. Participants were pre- and post-tested using an open-ended questionnaire and interviews about two socioscientific issues to assess their learning and transfer of argumentation skills and NOS understandings. Results showed improvements in the learning of argumentation practice and NOS understandings for Treatment I group participants. Similarly, there were improvements in the learning and transfer of NOS understandings for Treatment II group participants with only some improvements for the argumentation practice. Further, some of the Treatment I group participants made connections to argumentation when explicating their NOS understandings by the end of the study. Findings were discussed in light of classroom practice that utilizes an explicit approach, contextual approach, as well as an approach that integrates NOS and argumentation simultaneously.     

Developing a Community of Practice to Support Preservice Elementary Teachers’ Nature of Science Instruction

This study explored ‘To what extent will preservice teachers with adequate nature of science (NOS) conceptions and who participate in a community supporting NOS instruction teach NOS in their internship settings?’ Using a combination of focus group discussions and peer feedback, five preservice teachers met with university personnel bi-monthly during their internships to share NOS teaching and assessment ideas and ask questions. Field notes and voice recordings were used to track conversations at focus group settings and videotapes were made of science instruction in each internship setting. None of the preservice teachers had cooperating teachers who taught NOS, yet results showed that all five preservice teachers were able to explicitly teach NOS in their science lessons, albeit in different ways and to different degrees.     

Contextualizing Nature of Science Instruction in Socioscientific Issues

The purpose of this study was to investigate the effects of two learning contexts for explicit-reflective nature of science (NOS) instruction, socioscientific issues (SSI) driven and content driven, on student NOS conceptions. Four classes of 11th and 12th grade anatomy and physiology students participated. Two classes experienced a curricular sequence organized around SSI (the SSI group), and two classes experienced a content-based sequence (the Content group). An open-ended NOS questionnaire was administered to both groups at the beginning and end of the school year and analyzed to generate student profiles. Quantitative analyses were performed to compare pre-instruction NOS conceptions between groups as well as pre to post changes within groups and between groups. Both SSI and Content groups showed significant gains in most NOS themes, but between-group gains were not significantly different. Qualitative analysis of post-instruction responses, however, revealed that students in the SSI group tended to use examples to describe their views of the social/cultural NOS. The findings support SSI contexts as effective for promoting gains in students’ NOS understanding and suggest that these contexts facilitate nuanced conceptions that should be further explored.     

Girls and physics: teaching and learning strategies tested by classroom interventions in grade 11

In this quasi-experimental study various strategies are developed and empirically tested for an approach to physics instruction that should improve girls' and boys' attitudes toward and achievements in physics. Strategies include opportunities to integrate different pre-existing knowledge and the variation of teaching methods to enhance co-operation and communication in the classroom. The core of this study is an intervention in 31 classes of public schools in Switzerland. The intervention, one unit in optics and one in motion (velocity/acceleration), includes the first 40 lessons of the first physics course that all students have to attend at the upper secondary level. Data sources are various student and teacher questionnaires, tests and semi-structured interviews with teachers. Results of the entrance and final survey are presented. The focus will be on some of the applied strategies. Implications for the teaching and learning of physics and for teacher education are discussed.     

Stability and Lability in Science Interest from Middle Schools to the Age of Science Choices (14 + )

Summaries

English

In parts of England and Wales, middle schools have been introduced for pupils of eight to 12 or nine to 13 years of age. From these they enter secondary schools whose general age of entry is 11. It is feared that the teaching of science in middle schools is inadequate and variable. This research has followed the science interests of pupils aged from 12 to 14 and investigated the factors that affect them by means of three questionnaires administered at yearly intervals.

The first questionnaire was administered to almost 600 boys and girls mainly to explore their recollections of the science activities they had experienced or not done in the 52 middle schools from which they came. Their liking for science was also measured and each of the activities done or not done was correlated with it. There were activities which correlated positively and negatively with liking for middle‐school science. There were also sex differences, with boys showing greater interest in ‘physical science’ activities and girls in biological ones. The most remarkable finding was that for girls the higher correlating activities were not merely biological but botanical and they were deterred by some activities with animals.

The second questionnaire after one year in the secondary schools, i.e. at 13 + , monitored the liking for chemistry, physics and biology taken by about 450 pupils. The third questionnaire was given at 14+ when these pupils had chosen to continue or abandon the further study of the three sciences. All the variables from the three questionnaires were then correlated with these science choices. Although the general influence of liking for middle‐school science had by then disappeared, certain specific middle‐school science activities still correlated significantly with science choices. The correlates of chemistry and physics choice were not exclusively physical science but included biological activities in which some measurement was involved, for example plant growth. There were sex differences. Previous activities with animals was detrimental to girls’ biology choices.

A range of other factors had, however, altered pupils’ liking for sciences over the two years in the secondary school: effects of teachers, perceptions of difficulty (especially in the case of girls’ physcial science) and liking for practical work. About a third of the pupils had not made up their minds about what subjects they wanted to study indicating that such an early age of choice is undesirable.     

An exploration of social regulation of learning during scientific argumentation discourse

Argumentation and scientific discourse are essential aspects of science education and inquiry in the 21st century. Student groups often struggle to enact these critical science skills, particularly with challenging content or tasks. Social regulation of learning research addresses the ways groups attempt to navigate such struggles by collectively planning, monitoring, controlling, and reflecting upon their learning in collaborative settings. Such regulation and argumentation can also elicit socioemotional responses and interactions. However, little is known regarding how regulation processes and socioemotional interactions manifest among students involved in small-group discourse about scientific phenomena. As such, in this qualitative study, we explored social regulation of learning, scientific argumentation discourse, and socioemotional interactions in the discussions of two groups of high school physics students (n = 7, n = 6). We found key qualitative distinctions between the two groups, including how they enacted planning activities, their emphasis on challenging other’s ideas versus building shared understanding, and how socioemotional interactions drove discourse. Commonalities across groups included how regulation initiation related to discourse, as well as how the difficulty of the content hindered, and teacher support augmented, the enactment of social regulation. Finally, we found overlapping regulation and discourse codes that provide a foundation for future work.     

The Influence of Guided Inquiry and Explicit Instruction on K–6 Teachers’ Views of Nature of Science

This study assessed the influence of guided inquiry and explicit reflective instruction on K-6 teachers’ views of nature of science (NOS). Using the Views of Nature of Science Elementary School Version 2 (VNOS-D2), and associated interviews we tracked the changes in NOS views of teacher participants prior to and following a summer professional development program. The teachers participated in guided inquiry to improve physics knowledge, and explicit-reflective NOS activities to improve their views of NOS. Videotaped records of the workshop ensured that explicit reflective NOS instruction took place in conjunction with physics inquiry instruction. Analysis indicated that teachers improved their NOS views by the conclusion of the institute Implications for providing professional development combining inquiry and NOS instruction are made.     

Addressing the Dynamics of Science in Curricular Reform for Scientific Literacy: The case of genomics

Science education reform must anticipate the scientific literacy required by the next generation of citizens. Particularly, this counts for rapidly emerging and evolving scientific disciplines such as genomics. Taking this discipline as a case, such anticipation is becoming increasingly problematic in today’s knowledge societies in which the dynamics of the natural sciences is unprecedented. This raises the question of how scientific literacy can be defined in order to appropriate the dynamics of natural sciences such as genomics. Drawing on a contemporary sociocultural perspective on the dynamics of science, the science education research literature is briefly reviewed in this respect. It is argued that scientific literacy captures the dynamics of science once defined as an emergent feature of collective activity. This requires a form of science education to which the learners’ agency is central. The implications of this thesis will be discussed in regard to the case of embedding genomics in science curricula.     

Teacher actions and student task involvement in high school science classrooms

ABSTRACT

The purpose of the investigation was to investigate the consistency of NOS views among high school students across different scientific and socio-scientific contexts. A total of 261 high school students from eight different schools in Lebanon participated in the investigation. The schools were selected based on different geographical areas in Lebanon and the principals’ consent to participate in the study. The investigation used a qualitative design to compare the responses of students across different contexts/topics. All the participants completed a five-item open-ended questionnaire, which includes five topics addressing scientific and socio-scientific contexts. The items of the questionnaire addressed the empirical, tentative, and subjective aspects of NOS. Quantitative and qualitative analyses were conducted to answer the research questions. Results showed that participants’ views of the emphasised NOS aspects were mostly inconsistent. Plus, there was variance in participants’ views of NOS between scientific and socio-scientific issues. Discussion of the results related to differential developmental progression, contextual factors, social constructivist perspective, different domains of knowledge, and students’ individual differences.     

A Look into Students’ Retention of Acquired Nature of Science Understandings

Having the learning and retention of science content and skills as a goal of scientific literacy, it is significant to study the issue of retention as it relates to teaching and learning about nature of science (NOS). Then, the purpose of this study was to investigate the development of NOS understandings of students, and the retention of these understandings four months after being acquired through explicit reflective instruction in relation to two contexts. Participants were 24 tenth-grade students at a private high school in a city in the Middle East. Explicit NOS instruction was addressed within a six-week unit about genetic engineering. Three NOS aspects were integrated and dispersed across the unit. A questionnaire, together with semi-structured interviews, was administered as pre-, post-, and delayed post-test to assess the retention of participants’ NOS understandings. The questionnaire had two open-ended scenarios addressing controversial socioscientific issues about genetically modified food and water fluoridation. Results showed that most students improved their naïve understandings of NOS in relation to the two contexts following the six-week unit with the explicit NOS instruction. However, these newly acquired NOS understandings were not retained by all students four months after instruction. Many of the students reverted back to their earlier naïve understandings. Conclusions about the factors facilitating the process of retention as the orientation to meaningful learning and the prolonged exposure to the domain were discussed in relation to practical implications in the classroom.     

Transfer of Nature of Science Understandings into Similar Contexts: Promises and Possibilities of an Explicit Reflective Approach

The purpose of this study was to (a) investigate the effectiveness of explicit nature of science (NOS) instruction in the context of controversial socioscientific issues and (b) explore whether the transfer of acquired NOS understandings, which were explicitly taught in the context of one socioscientific context, into other similar contexts (familiar and unfamiliar) was possible. Participants were 10th grade students in two intact sections at one high school. The treatment involved teaching a six-week unit about genetic engineering. For one group (non-NOS group), there was no explicit instruction about NOS. For the other group (NOS group), explicit instruction about three NOS aspects (subjective, empirical, and tentative) was dispersed across the genetic engineering unit. A questionnaire including two open-ended scenarios, in conjunction with semi-structured interviews, was used to assess the change in participants’ understandings of NOS and their ability to transfer their acquired understandings into similar contexts. The first scenario involved a familiar context about genetically modified food and the second one focused on an unfamiliar context about water fluoridation. Results showed no improvement in NOS understandings of participants in the non-NOS group in relation to the familiar and unfamiliar contexts. On the other hand, there was a general improvement in the NOS understandings of participants in the NOS group in relation to both the familiar and unfamiliar contexts. Implications about the transfer of participants’ acquired NOS understandings on the basis of the distance between the context of learning and that of application are highlighted and discussed in link with the classroom learning environment.     

STEM教育理念下小学科学教学分析

随着社会经济的发展,人们对教育的重视度越来越高,新的教学方式和教学理念也随之出现。STEM属于一种开放、融合的新型教育理念,要求对科学、技术、工程、数学进行融合,力求从不同方面出发,促进学生思维创造能力与综合素养的发展。     

The Effects of Argument Stance on Scientific Knowledge Inquiry Skills

This study investigates the effects of argument stance on knowledge inquiry skills. Sixty-two participants were assigned to three argument stance conditions (proponent, opponent, or control) to receive scaffolded argumentation practice on two science issues in random order. After the argumentation treatment, participants were asked to write down their own opinions regarding the claim. Their responses were analysed according to argument structure, argument content, methods of refutation, and number of new propositions. Results revealed that taking a proponent's stance increased the use of evidence in argumentation, while taking an opponent's stance enhanced both the use of evidence and alternative-based refutations to the claim, number of falsifications, and number of new propositions. This implies that arguing from an opponent's stance may increase the search for multiple causes behind observed phenomena and the need for evidence, thereby alleviating the confirmation bias in thinking.     

What Third-Grade Students of Differing Ability Levels Learn about Nature of Science after a Year of Instruction

This study explored third-grade elementary students' conceptions of nature of science (NOS) over the course of an entire school year as they participated in explicit-reflective science instruction. The Views of NOS-D (VNOS-D) was administered pre instruction, during mid-school year, and at the end of the school year to track growth in understanding over time. The Young Children's Views of Science was used to describe how students conversed about NOS among themselves. All science lessons were videotaped, student work collected, and a researcher log was maintained. Data were analyzed by a team of researchers who sorted the students into low-, medium-, and high-achieving levels of NOS understandings based on VNOS-D scores and classwork. Three representative students were selected as case studies to provide an in-depth picture of how instruction worked differentially and how understandings changed for the three levels of students. Three different learning trajectories were developed from the data describing the differences among understandings for the low-, medium-, and high-achieving students. The low-achieving student could discuss NOS ideas, the medium-achieving student discussed and wrote about NOS ideas, the high-achieving student discussed, wrote, and raised questions about NOS ideas.     

Projects at the National Institute for Educational Measurement (Centraal Instituut Voor Toetsonwikkeling‐‐CITO), of The Netherlands

Abstract

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中小学科学教师专业化素养分析

公众科学素养水平低下已成为严重制约中国经济发展和社会进步的瓶颈之一。国务院发布了《全民科学素质行动计划纲要》,旨在提高公众素养,而未成年人是实施《纲要》的重中之重。要提高未成年人的科学素养,建设一支专业化素养高的中小学科学教师队伍尤为关键。中小学科学教师队伍存在种种问题,分析论证科学教师应具备科学素养、教育素养和人文素...