This study explored four middle-school mathematics teachers' provision of non-examples and instructional explanations in teaching rational numbers to seventh-grade students. The data sources were 8 lesson hours of observations conducted in four different classrooms. Yin's [(2018). "Case study research and applications: Design and…

This study aimed to prepare, implement and evaluate the effectiveness of a professional development program that develops Technological Pedagogical Content Knowledge (TPACK) of teacher educators. Qualitative research methods were used. The research was carried out with 10 teacher educators from different departments. Pre- and post-interviews were…

Interdisciplinary STEM education is a particular pedagogical methodology in which learners learn the association and connection of the knowledge of science and mathematics through particular technological engineering. To achieve this, specific interdisciplinary STEM-based educational curricula should be developed, and teachers should be qualified…

This study aims to reveal science teachers' performances in designing TPACK-based argumentation practices for teaching geology. This study used a holistic single case study design where thirty-two science teachers participated in a professional development program. All materials such as videos, etc. used by the teachers and the Pedagogical…

The aim of this research is to examine the effect of the lesson study practice on the academic achievements of primary school students in the Life Sciences Course. The study was performed with quantitative research method by using a quasi-experimental design, namely, the pretest-posttest control group design. The research was conducted with the…

The purpose of this study was to reveal the challenges and advantages of the implementation of the lesson study model in Turkish middle schools. This study was a case study and the participants of the study was 11 middle school mathematics teachers in three different school in a city at central Anatolia region of Turkey. Three lesson study cycles…

The lesson study (jugyoukenkyuu) approach to professional development, used in Japan and various regions of North America, encourages teachers to reflect on their teaching in order to improve its overall quality. The purpose of the current study is to analyze the influence of this approach on the professional development of English as a foreign…

This study, which was conducted in 2016-2017 academic year, scrutinized the impact of a purposefully designed professional development program titled 'NOS-PD' on the understandings of the Nature of Science (NOS) via instructional practices. Specifically, the purpose of this qualitative multiple-case study was to delineate the impact of a NOS…

This qualitative research presents how a mathematics teacher educator's feedbacks to two lower secondary school mathematics teachers affects their design of hypothetical learning trajectories regarding teaching patterns and their teaching practice. The data comes from a web portal, which was designed as a professional development tool for…

In this study, 24 experienced in-service teachers' science process skills (SPSs) development and their use of SPSs in their lesson plan through a week-long professional development (PD) supported by the Scientific and Technological Research Council of Turkey (#117B302) were studied. SPSs are important part of scientists' work, scientific literacy,…

This article explores the nature of reflective practice in a professional development process based on lesson study. The authors examine how a lesson study model initiates reflection as a meta-action scaffolding reflective practice among teachers of English as a foreign language (EFL) at a university in Turkey. Fieldnotes, interviews, and audio…

Spatial thinking skills are competencies individuals will need in their lives in order to know and understand the world and to perceive the space correctly. In order for individuals to have these competencies, effective training in the development of spatial thinking skills should occur. Spatial thinking skills can be acquired through…

The aim of this study is to reveal the development of professional knowledge and competencies among pre-service English teachers through the practice of lesson study. This study was carried out to improve pre-service teachers' teaching skills and to show the effect of the practice of lesson study. The action research method was used in this…

As an inquiry based model, Lesson Study highlights teacher professional development in the field of English language teaching by giving teachers the role of researchers in classrooms. Gaining widespread popularity in different educational contexts and holding a great promise as a model of professional development, the Lesson Study model forms a…

Focusing on the reflective exchanges of four test writers at an intensive language school within a public university, this study explored the effectiveness of a "lesson study" model on their professional development as test writers. Lesson study is a powerful tool for teachers' professional development and a modified version of it--a…