Developing a science teacher education course that supports student teachers’ thinking and teaching about the nature of science

This paper reports on part of an ongoing research project in England concerning the Nature of Science (NOS). The particular focus is on the initial thinking of the graduate scientists starting a one-year, Postgraduate Certificate of Education (PGCE) course and the way the course approaches adopted influence their views and understanding of NOS and their teaching. The research is set against a wealth of literature indicating that teachers find it difficult to teach curricula that emphasise NOS. Thus a key impetus for research in this area has been to look for ways that beginning teachers might be better prepared to face such challenges.

Sample

The paper draws on data from three cohorts of secondary PGCE students in a university–schools partnership, involving a total of 169 students.

Design and method

The research lies within a design research tradition. It has used mixed methods, involving written tasks, interviews and focus groups, with an iterative approach where the outcomes from one cohort have been used to inform course developments in successive years.

Results

The results from these cohorts suggest that, while the students starting the course have a less restricted view of NOS than indicated by some other studies, in most cases there is a lack of breadth and depth to their understanding. There is some evidence that the use of specific tasks focusing on NOS in university-based sessions may be helping to develop and deepen understanding. However, the impact of current approaches remains fairly limited and attempts to develop teaching practices often face considerable barriers in the school-based practicum.

Conclusions

Graduate science students’ understanding of NOS as they embark on the PGCE is not highly developed. Hence, the emphasis on aspects of NOS in the school curriculum presents a considerable challenge. This study suggests that there is a need to both further develop an explicit focus on NOS in university-based sessions and to develop closer relationships between schools and university faculty in seeking to support developments in classroom practice in this difficult area.     

Exploring the pedagogical features of integrating essential competencies of scientific inquiry in classroom teaching

ABSTRACT

Background: As inquiry-based instruction is not universally implemented in science classrooms, it is crucial to introduce instructional strategies through the use of contextualized learning activities to allow students with different background knowledge and abilities to learn the essential competencies of scientific inquiry and promote their emotional perception and engagement.

Purpose: This study explores how essential scientific competencies of inquiry can be integrated into classroom teaching practices and investigates both typical and gifted secondary students’ emotional perception and engagement in learning activities.

Sample: A case teacher along with 226 typical and 18 gifted students from a suburban secondary school at Taiwan participated in this study.

Design and methods: After attending twelve 3-hour professional development workshops that focused on scientific inquiry teaching, the case teacher voluntarily developed and elaborated her own teaching activities through the discussions and feedback that she received from workshop participants and science educators. Quantitative and qualitative data were collected through activity worksheet, questionnaire, video camera, and tape recorders. Frequency distribution, Mann-Whitney U test, and discourse analysis were used for data analyses.

Results: Case teacher’s teaching activities provide contextual investigations that allow students to practice making hypotheses, planning investigations, and presenting and evaluating findings. Students’ learning outcomes reveal that typical students can engage in inquiry-based learning with positive emotional perception as well as gifted students regardless of their ability level. Both gifted and typical students’ positive emotional perception of and active engagement in learning provide fresh insight into feasible instructions for teachers who are interested in inquiry-based teaching but have little available time to implement such instructions into their classrooms.

Conclusions: The results of our work begin to address the critical issues of inquiry-based teaching by providing an exemplary teaching unit encompassing essential scientific competencies     

‘It didn’t really change my opinion’: exploring what works,what doesn’t and why in a school science,technology, engineering and mathematics careers intervention

Background: It is widely agreed that more needs to be done to improve participation in science, technology, engineering and mathematics (STEM). Despite considerable investment in interventions, it has been difficult to discern their effectiveness and/or impact on participation.

Purpose: This paper discusses findings from a six-week pilot STEM careers intervention that was designed and overseen by a teacher from one London girls’ school. We reflect on the challenges for those attempting such interventions and the problems associated with evaluating them.

Sample: Data were collected from Year 9 students (girls aged 13–14 years) at the school.

Design and methods: Pre- and post-intervention surveys of 68 students, classroom observations of intervention activities, three post-intervention discussion groups (five or six girls per group) and a post-intervention interview with the lead teacher were conducted.

Results: Although the intervention did not significantly change students’ aspirations or views of science, it did appear to have a positive effect on broadening students’ understanding of the range of jobs that science can lead to or be useful for.

Conclusions: Student aspirations may be extremely resistant to change and intervention, but students’ understanding of ‘where science can lead’ may be more amenable to intervention. Implications are discussed, including the need to promote the message that science is useful for careers in and beyond science, at degree and technical levels.     

How Can Technology Enhance Children's Natural Curiosity?

Summary

We want children to WANT to learn. Since they have a natural curiosity about so many things in their world, it is only right to base our teaching strategies around this curiosity. If we disguise our teaching objectives as child-centered activities, our students will soon realize that learning is fun and not something to dread. People often have a natural bond with animals, especially with cats and dogs. We have used technology to support our students' inquiry as they observed a puppy and kitten throughout several months. By linking technology with our county objectives, the Maryland School Performance Assessment Program science outcomes (MSPAP) and the National Science Education Standards we have provided the students with an exciting, real-world experience.     

Reclaiming tutorials as learning spaces in the sciences

ABSTRACT

Tutorials/discussion classes¹ are seen as an essential part of the teaching mix in the natural sciences, because that is where problems can be solved and course content is applied. Learning support provided by teaching assistants may free up the lecturer to do research, but are these assistants sufficiently well trained and well informed? Do tutorials offer learning spaces or merely activities to engage the willing student? In this paper I report on a study conducted in a science faculty of a research intensive university in South Africa. I collected data using interviews and questionnaires which gave insight into the many variants of tutor/teaching assistant² support that exist in the faculty. Practices that seem to lead to better student learning were also foregrounded. It became evident that lecturers need to plan their tutorials as an integral part of the learning space and not as an add-on activity.     

Teaching aspects of the interrelationship between science and technology: a research report on the design,enactment and evaluation of a teaching proposal

Background: Helping upper elementary and lower secondary school students develop an awareness of various aspects of the nature of science (NOS) and nature of technology (NOT) is a widely recognized goal of science teaching. In this study, we focus on the connections between science and technology (S&T).

Purpose: We report on the design, development, enactment and evaluation of a teaching-learning sequence (TLS) that combines hands-on activities in geometrical optics with explicit epistemological discourse for reflection purposes. The design of the TLS draws on perspectives from the inquiry-oriented and design-based teaching and learning frameworks.

Sample: The enactment of the TLS involved a class of 17 sixth-grade students, aged 10–11 years old, of a public elementary school in Cyprus.

Design and methods: We present findings from written responses to both closed and open-ended tasks as well as follow-up semi-structured interviews that probed students’ understanding of the difference between the main goals of S&T.

Results: The results illustrate elementary students’ readiness to engage with epistemic issues and demonstrate the potential of prompting young learners’ ability to develop informed awareness of the NOS and NOT. The results also provided feedback for the revision of the TLS so as to further enhance its effectiveness in achieving the stated learning objectives.

Conclusion: We discuss the implications of our findings for the teaching of the NOS and NOT and for the design and validation of TLSs. It is possible for students of this age group to develop an awareness of issues related to the NOS and NOT. TLSs can be improved through design-based research approaches to serve as productive tools to this end.     

Developing an instrument for assessing students’ concepts of the nature of technology

Background: In Bangladesh, a common science curriculum caters for all students at the junior secondary level. Since this curriculum is for all students, its aims are both to build a strong foundation in science while still providing students with the opportunities to use science in everyday life – an aim consistent with the notion of scientific literacy.

Purpose: This paper reports Bangladeshi science teachers’ perspectives and practices in regard to the promotion of scientific literacy.

Sample: Six science teachers representing a range of geographical locations, school types with different class sizes, lengths of teaching experience and educational qualifications.

Design and method: This study employed a case study approach. The six teachers and their associated science classes (including students) were considered as six cases. Data were gathered through observing the teachers’ science lessons, interviewing them twice – once before and once after the lesson observation, and interviewing their students in focus groups.

Results: This study reveals that participating teachers held a range of perspectives on scientific literacy, including some naïve perspectives. In addition, their perspectives were often not seen to be realised in the classroom as for teachers the emphasis of learning science was more traditional in nature. Many of their teaching practices promoted a culture of academic science that resulted in students’ difficulty in finding connections between the science they study in school and their everyday lives. This research also identified the tension which teachers encountered between their religious values and science values while they were teaching science in a culture with a religious tradition.

Conclusions: The professional development practice for science teachers in Bangladesh with its emphasis on developing science content knowledge may limit the scope for promoting the concepts of scientific literacy. Opportunities for developing pedagogic knowledge is also limited and consequently impacts on teachers’ ability to develop the concepts of scientific literacy and learn how to teach for its promotion.     

Evidence-based teaching: a simple view of “science”

ABSTRACT

This paper examines the insistent claims by advocates of evidence-based teaching that it is a rigorous scientific approach. The paper questions the view that randomised controlled trials and meta-analyses are the only truly scientific methods in educational research. It suggests these claims are often based on a rhetorical appeal which relies on too simple a notion of “science”. Exploring the tacit assumptions behind “evidence-based teaching”, the paper identifies an empiricist and reductionist philosophy of science, and a failure to recognise the complexity of education and pedagogy. Following a discussion of large-scale syntheses of evidence (Hattie’s Visible Learning; the Education Endowment Foundation’s Teaching and Learning Toolkit), it examines in detail one strand of the latter concerning sports participation, which is used to illustrate flaws in procedures and the failure to take seriously the need for causal explanations.     

Attitudes towards science and views of nature of science among elementary school students in terms of gender,cultural background and grade level variables

Background: There is a growing interest in investigating attitudes towards science and views of Nature of Science among elementary grade students in terms of gender, cultural backgrounds, and grade level variables.

Purpose: The purpose of this study is to examine the attitudes toward science and views of Nature of Science among Spanish students, Spanish students of gypsy ethnicity and second-generation Spanish students with east-European heritage, and to determine if their attitudes are related to their views of Nature of Science.

Sample: Data for this study was gathered from seven elementary schools in Spain, forming a convenience sample of 149 students enrolled from 2nd to 5th grade.

Design and Methods: The Nature of Science Instrument (NOSI) and an adaptation of the Test of Science Related Attitudes scale (TOSRA) were used. Follow-up structured interviews were performed with 15 participants.

Results: Regarding gender, boys had better attitudes toward Science than girls but more naïve views of the empirical Nature of Science. In relation to cultural background, second generation Spanish students with east-European heritage reported significantly better attitudes toward Science than Spanish students and Spanish students of gypsy ethnicity. No differences in Nature of Science views were found. Concerning grade level, third graders had more positive attitudes toward Science than fifth and sixth graders and more informed views of the tentative Nature of Science. Finally, no relation between Nature of Science views and attitudes towards Science were identified.

Conclusion: This study stress the need to address the steady decline in positive attitude toward Science and to improve students’ views of Nature of Science from early elementary grades, and to use gender and culturally inclusive science teaching strategies.     

The effectiveness of problem-based learning on teaching the first law of thermodynamics

Background: Problem-based learning (PBL) is a teaching approach working in cooperation with self-learning and involving research to solve real problems. The first law of thermodynamics states that energy can neither be created nor destroyed, but that energy is conserved. Students had difficulty learning or misconceptions about this law. This study is related to the teaching of the first law of thermodynamics within a PBL environment.

Purpose: This study examined the effectiveness of PBL on candidate science teachers’ understanding of the first law of thermodynamics and their science process skills. This study also examined their opinions about PBL.

Sample: The sample consists of 48 third-grade university students from the Department of Science Education in one of the public universities in Turkey.

Design and methods: A one-group pretest–posttest experimental design was used. Data collection tools included the Achievement Test, Science Process Skill Test, Constructivist Learning Environment Survey and an interview with open-ended questions. Paired samples t-test was conducted to examine differences in pre/post tests.

Results: The PBL approach has a positive effect on the students’ learning abilities and science process skills. The students thought that the PBL environment supports effective and permanent learning, and self-learning planning skills. On the other hand, some students think that the limited time and unfamiliarity of the approach impede learning.

Conclusions: The PBL is an active learning approach supporting students in the process of learning. But there are still many practical disadvantages that could reduce the effectiveness of the PBL. To prevent the alienation of the students, simple PBL activities should be applied from the primary school level. In order to overcome time limitations, education researchers should examine short-term and effective PBL activities.     

The influence of extracurricular activities on middle school students’ science learning in China

ABSTRACT

Informal science learning has been found to have effects on students’ science learning. Through the use of secondary data from a national assessment of 7410 middle school students in China, this study explores the relationship among five types of extracurricular science activities, learning interests, academic self-concept, and science achievement. Structural equation modelling was used to investigate the influence of students’ self-chosen and school-organised extracurricular activities on science achievement through mediating interests and the academic self-concept. Chi-square tests were used to determine whether there was an opportunity gap in the student’s engagement in extracurricular activities. The students’ volunteer and school-organised participation in extracurricular science activities had a positive and indirect influence on their science achievement through the mediating variables of their learning interests and academic self-concept. However, there were opportunity gaps between different groups of students in terms of school location, family background, and especially the mother’s education level. Students from urban areas with better-educated mothers or higher socioeconomic status are more likely to access diverse science-related extracurricular activities.     

BRIDGING THE DIFFERENCES TO UNCOVER THE SIMILARITIES: DISCIPLINES WORKING TOGETHER IN EARLY CHILDHOOD SPECIAL EDUCATION

Abstract

The study examined the integration of science and mathematics methods courses and preservice teachers’ understanding of constructivism. The participants were 50 preservice teachers who were enrolled in early childhood education mathematics and science methods courses, and an early childhood practicum. The two methods courses were integrated and the instructors adopted a collaborative approach, including common syllabi, texts, assignments, and teaching strategies. The preservice teachers completed e‐journal reflection that were subsequently coded and analyzed. The findings suggested that the instructional approach enabled students to develop and refine their understanding of constructivism. © 2005 Elsevier Inc. All rights reserved.     

Utilising selected informal science experiences to teach science in inquiry-centred Nigerian classrooms

Abstract

The formal and informal sciences can be integrated for the enhancement of training, research and teaching in the formal school system. The knowledge and methods of informal science, although regarded as crude, local or native, when embedded with formal science, can be subsequently developed and packaged as teaching innovation for the promotion of scientific knowledge, skill and training. This is the focus of this study where selected informal science experiences were used to teach some science concepts in inquiry-centred Nigerian classrooms. In inquiry-based lessons, teachers only act as facilitators and resources, creating the environment for investigations to take place.

In the experiment, students' explorations were centred on informal science activities which were guided to be incorporated into the knowledge structure of formal science classroom experiences. Subjects were Senior Secondary School 11 male and female students taught the topic alkanols; types and preparation including concepts such as fermentation and the brewing process. Informal science activities involving the processing of cassava, grains and other local products were explored by subjects in the experimental group and there was a control group whose subjects were not exposed to informal science activities. Differences in the cognitive and affective learning outcomes of students from the two groups upon data analyses were found to be significant with sex playing a major role. Implications of the findings were highlighted and recommendations were made.     

The use of organising purposes in science instruction as a scaffolding mechanism to support progressions: a study of talk in two primary science classrooms

Purpose: This study examines how different purposes can support teachers in their work with progressions as a part of a teaching sequences in science in primary school.

Design/Method: The study was carried out in two classes working with inquiry and the events that took place in the classroom were filmed. In the study, we have chosen to use the technical term proximate purposes for the student-oriented purposes, and ultimate purposes for the scientific purposes. Together, these two types of purposes form the organisational purposes for the classes. Proximate purposes work in such a way that students can use their language and relate to their experiences as ends-in-view. To examine how organising purposes can be used to analyse progressions, we discuss examples from two different lessons.

Result: The study shows the importance of proximate purposes working as ends-in-view and also demonstrates how the teacher and students may create continuity in teaching to enable progression as a part of a teaching sequence.

Conclusions: To create continuity, it was essential that the teacher scaffolded the students in ways which allowed the students to explicitly differentiate between what was relevant or not, about the proximate purposes in relation to the ultimate purpose.     

Background aptitude and school factors related to achievement in year 12 science subjects

Conclusion The foregoing analyses suggest that achievement in Year 12 students was not related to either the use of exploratory teaching methods or the standard of science facilities. Possibly this was due to the fact that only senior students who had chosen to study science were included in the investigation. These results are based on data from Year 12 students who had chosen to study science and may therefore be different in important respects from other Year levels. It is possible that data from a sample of the whole age group in junior secondary school could yield a different pattern of relationships. Other studies (Ainley, 1978c) have suggested that in the junior secondary area the provision of better facilities was associated with enriched science learning experiences. Perhaps the Australian Science Facilities Programme would have been of greater benefit had it been directed more to the junior science area rather than to the senior science specialities.     

Influence of science instruction reform on academic performance of eighth grade students in Chinese inner-Mongolia autonomous region

Abstract

The Chinese government has implemented centralised science curriculum standards to change science teaching from a didactic to inquiry-based approach to support all students in acquiring science literacy. Framed through theoretical perspectives of inquiry-based instruction and cultural pedagogy, this study examined the influence and impact of these reforms on Chinese science teaching and the performance of 8th grade Chinese students in the Inner-Mongolia Autonomous Regions using instruments developed by TIMSS 2007. It revealed that mixed, lecture-based, more inquiry-based and practice-based science teaching approaches were popularly practiced in classrooms, with the mixed-teaching approach being the most popular. While a mixed approach was positively associated with performance, the frequent practice of a more inquiry-based approach had a significant negative relationship. Neither lecture-based nor practiced-based teaching approaches were found to be related to performance. This finding questions the assumption that inquiry-based science teaching is central to improving the science performance of all students in China.     

Exploration and Authority in Science Learning Environments: an International Study

Summaries

English

Scales derived from student responses were used to describe the science learning environments of 14‐year‐old students in 14 different countries. It was found that the best science achievement occured in countries which combined exploratory and authoritarian teaching styles. Within countries, exploratory teaching styles were again associated with high science‐achievement, although the relationship was less strong. These results suggest that some science teachers might improve their pupils’ performance if they adopted more exploratory teaching styles. But no firm conclusions can be reached until the results have been replicated in an experimental study.     

Students’ views of uncertainty in formal and personal science

Background: Uncertainty is a crucial element of scientific knowledge growth. Students should have some understanding of how science knowledge is developed and why scientific conclusions are considered more or less certain than others. A component of the nature of science, it is considered an important aspect of science education and allows students to recognize the limitations of scientific research.

Purpose: This study examined Grades 5 and 9 students’ views of uncertainty in their personal scientific research and the formal scientific research of professionals.

Sample: This study included 33 students in Grade 5 (n = 17) and Grade 9 (n = 16). The students were recruited from a charter school that emphasised inquiry instruction.

Design and methods: Data were collected through interviews. Students were asked their views of their inquiry-based projects and their views of professional science.

Results: Interview data and statistical analyses indicated that students recognized uncertainty in personal science, which varied across elements of the scientific process. Additionally, their views of uncertainty in formal science tended to change across grades and knowledge of uncertainty in personal and formal science were positively correlated.

Conclusion: These findings offer insights into the processes by which students come to understand uncertainty in science and point to ways of fostering such knowledge through teaching practices.