Science Professional Learning Communities: Beyond a singular view of teacher professional development

Professional Learning Communities (PLCs) are frequently being used as a vehicle to transform science education. This study explored elementary teachers' perceptions about the impact of participating in a science PLC on their own professional development. With the use of The Science Professional Learning Communities Survey and a semi-structured interview protocol, elementary teachers' perceptions of the goals of science PLCs, the constraints and benefits of participation in PLCs, and reported differences in the impact of PLC participation on novice and experienced teachers were examined. Sixty-five elementary teachers who participated in a science PLC were surveyed about their experiences, and a subsample of 16 teachers was interviewed. Results showed that most of the teachers reported their science PLC emphasized sharing ideas with other teachers as well as working to improve students' science standardized test scores. Teachers noted that the PLCs had impacted their science assessment practices as well as their lesson planning. However, a majority of the participants reported a differential impact of PLCs depending on a teacher's level of experience. PLCs were reported as being more beneficial to new teachers than experienced teachers. The interview results demonstrated that there were often competing goals and in some cases a loss of autonomy in planning science lessons. A significant concern was the impact of problematic interpersonal relationships and communication styles on the group functioning. The role of the PLC in addressing issues related to obtaining science resources and enhancing science content knowledge for elementary science teachers is discussed.     

The relationship between biology teachers’ understanding of the nature of science and the understanding and acceptance of the theory of evolution

ABSTRACT

Despite the importance of the theory of evolution (TE) to scientific knowledge, a number of misconceptions continue to be found among biology teachers. In this context, the first objective of this study was to identify the impact of professional development programme (PDP) on teachers’ understanding of nature of science (NOS) and evolution and on the acceptance of this theory. Its second objective was to study the relationship among these variables. Three instruments were used to quantify these variables: the Views of the Nature of Science Version D (VNOS D+), the Assessing Contextual Reasoning about Natural Selection (ACORN), and the Measure of Acceptance of Theory of Evolution (MATE). The results indicate that the PDP had a positive impact on teachers, significantly improving their understanding of the NOS and natural selection, as well as their acceptance of the TE. Furthermore, a positive correlation between the understanding of the NOS obtained by teachers in the first part of the PDP and the understanding and acceptance of evolution that these teachers showed at the end of the programme was determined. However, no relationship between an understanding of the NOS and gains in the understanding and acceptance of evolution was found.     

Year-long teacher professional development on fifth grade student science outcomes

ABSTRACT

We first examined the effects of a year-long professional development (PD) programme for elementary science teachers on fifth grade student performance on state-mandated science achievement tests of students from a treatment and a comparison group of teachers in the 2009–2010 academic year. Then, we investigated the longer-term impacts by comparing the 2010–2011 student test results of the teachers one year after receiving treatment in 2009–2010 with the students of teachers who received treatment during 2010–2011. Test scores were analysed using a propensity score matching method to examine the relationship between the PD and student achievement. Results showed that even though the treatment teachers were out of the classroom 20% of the school year to attend the PD, there was no difference between their students’ science achievement scores and those of the comparison teachers who were in the classroom every day. This is an important finding because many principals and parents are reluctant to provide teachers with release time for PD. We also determined that students of teachers one year after participating in the PD significantly (p?<?0.001) with a medium effect size (η²?=?.088) outperformed students of teachers who had just completed the programme. This suggests that it takes time for teachers to implement new teaching strategies and that to observe the impact of an intervention programme, it may be important to expand the timeframe of the programme evaluation.     

Teachers’ professional development in Nanoscience and nanotechnology in the context of a Community of Learners

ABSTRACT

This case study focuses on teachers’ professional development in NanoScience and nanoTechnology (NST). In the context of a Community of Learners (CoL), in-service teachers in collaboration with science education researchers, nanoscience researchers and experts from science museums, developed a teaching module. This module integrates NST topics along with aspects of science communication, i.e. development of science exhibits and socio-scientific issues, e.g. ethics regarding the research in this field. The data were gathered over 1-year period by using video recordings and interviews. The Interconnected Model of Professional Growth was used to study the processes that support teachers’ professional change in this context, as they are elicited from their interactions in the CoL. Our findings indicate that the dynamic of teachers’ interactions with colleagues and the mediating processes that impact on their professional learning, are crafted on the basis of the emerged challenges in each phase of module’s design and development. These findings give an insight on teachers’ professional learning as they transfer their professional knowledge regarding scientific topics which are innovative to them, i.e. NST, into their teaching practice. In this respect, this study contributes to research literature relevant to teachers’ professionalisation in order to implement innovations in the classroom.     

Development of Items for a Pedagogical Content Knowledge Test Based on Empirical Analysis of Pupils' Errors

In view of the lack of instruments for measuring biology teachers' pedagogical content knowledge (PCK), this article reports on a study about the development of PCK items for measuring teachers' knowledge of pupils' errors and ways for dealing with them. This study investigated 9th and 10th grade German pupils' (n?=?461) drawings in an achievement test about the knee-jerk in biology, which were analysed by using the inductive qualitative analysis of their content. The empirical data were used for the development of the items in the PCK test. The validation of the items was determined with think-aloud interviews of German secondary school teachers (n?=?5). If the item was determined, the reliability was tested by the results of German secondary school biology teachers (n?=?65) who took the PCK test. The results indicated that these items are satisfactorily reliable (Cronbach's alpha values ranged from 0.60 to 0.65). We suggest a larger sample size and American biology teachers be used in our further studies. The findings of this study about teachers' professional knowledge from the PCK test could provide new information about the influence of teachers' knowledge on their pupils' understanding of biology and their possible errors in learning biology.     

Upper Secondary French Students,Chemical Transformations and the “Register of Models”: A cross‐sectional study

The purpose of this study is to identify how upper secondary school French students (Grade 10–12) interpret chemical transformation with regards to the changes within molecules and atoms, and in terms of intramolecular and/or intermolecular bond breaking. In order to identify and describe the students’ assimilated knowledge, four questions were asked to 930 students using a written questionnaire submitted a long time after the related teaching took place. There is much research into student learning in the concept areas discussed here (atoms and molecules, chemical change, chemical bonding), as reviewed in the paper. The present study presents data from an educational system where limited work has been reported in the international literature. The French system has its own unique curriculum, and is taught in the national language (where much of the existing research has concerned learning in Anglophile systems). The research reported here found that French secondary students experienced many similar difficulties in understanding these key scientific concepts to those that have been reported elsewhere, showing the cross‐cultural nature of the key educational issues. For example, many have difficulties in understanding the changes undergone by atoms and molecules in the course of a chemical reaction; many are not able to justify explicitly the breaking of inter‐molecular bonds and to interpret the breaking of intramolecular bonds in terms of reorganization of atoms, the target level of understanding in the curriculum from the end of Grade 9. However, it is also suggested that some of the specific characteristics identified here are linked to the ordering and language used in the French curriculum, and such cultural idiosyncrasies may offer useful insights into both problematic and valuable aspects of science pedagogy.     

Professional Development and Its Impact on Children in Early Childhood Education and Care: A Meta-Analysis Based on European Studies

This study reviews the European evidence on the impact of professional development (PD) of pre-school educators on child outcomes. A meta-analysis investigates how PD of pre-school educators in formal pre-school centers in Europe affects child outcomes. The European studies are quite recent and limited in numbers, and our results show a significant positive effect of PD on child outcomes with an overall effect size of 0.35 (with a 95% confidence interval from 0.20 to 0.51). The magnitude is slightly smaller than corresponding results based on US studies, but indicates a general positive effect of PD on child outcomes.     

Long-term Influences of Portfolios on Professional Development

In recent publications on the use of portfolios in professional training both their goals, application and success are reported in favourable terms. The main purposes of portfolios being put forward are: documentation of performance, monitoring growth, revealing discrepancies in development and enhancing self-responsibility. The findings, however, pertain to the introductory implementation of the portfolio instrument, most notably with (student) teachers. Not much is known about the sustained use of a portfolio as an instrument to support professional development in the long term. In this study the benefits of different forms of sustained portfolio use are focused on in particular. Use is related to the portfolio's function, which can be for both professional development and certification, and to the setting and conditions of use, which may be either mandatory or voluntary. We gauge its impact on indicators like ongoing documentation, systematic reflection, dialogue with significant others and learning for professional development. The difficulties experienced users found are discussed, as well as the gains they saw in sustained use of portfolios, which led us to conclude that portfolios are mainly used for documentation but have a high potential as mirrors of competence when issued as instruments for self-evaluation and self-assessment.     

The Influence of Teachers in the Operation of Basic Schools in Iceland1

The governance of basic schools (grades 1–10) in Iceland was transferred from state control to municipal control in 1995 with a new Basic School Act. This transfer was in line with the emphasis on school‐based management that was stressed in the Act. This policy was criticised by many, including teachers and their union representatives. Research indicates that basic principals are very pleased with their new working environment, but showed indication of dissatisfaction amongst teachers. Accordingly, it was of interest to investigate how this policy has influenced the working environment of basic school teachers: Has it facilitated increased autonomy of schools? Has it enhanced participative decision‐making and co‐operation amongst teachers? What kind of pressures and expectations has it generated from parents and municipal educational authorities? A questionnaire was sent to a sample of 750 teachers during the spring of 2005. The findings indicate that there seems to be a gap emerging between the perceived professional independence of schools and the professional independence of teachers. This study also indicates that the general teacher wants to be more involved in decision‐making in his/her school in areas such as development projects, in‐service planning and distribution of financial resources. The study also shows that external demands and pressures on teachers have increased considerably, particularly in urban areas.     

Students’ approaches to learning in problem-based learning: Taking into account professional behavior in the tutorial groups,self-study time,and different assessment aspects

Problem-based learning (PBL) represents a major development in higher educational practice and is believed to promote deep learning in students. However, empirical findings on the promotion of deep learning in PBL remain unclear. The aim of the present study is to investigate the relationships between students’ approaches to learning (SAL) and academic achievement in a PBL environment, taking into account the role of self-study time and students’ professional behavior in the PBL tutorial groups. In addition, different knowledge categories that determine achievement (i.e., understanding of concepts, understanding of the principles that link concepts, and the linking of concepts and principles to conditions and procedures for application) were taken into account. A hypothesized structural equation model including these variables was tested. Results showed that the PBL students in this study reported more use of a surface compared to a deep approach to learning. The hypothesized model demonstrated an excellent fit of the model with the data. The relationship between SAL and academic achievement was mediated by self-study time and professional behavior. These findings imply that self-study time and professional behavior are crucial variables to take into account when studying SAL.