Chile is home to most of the world's largest telescopes, and astronomy research is robust in the country. However, astronomy education in Chile is much less mature. As an effort to increase its quality and coverage, more astronomy K-12 teacher professional development (PD) has been offered in Chile in the last decade, but the results of these…

In rural, geographically dispersed school districts, access to high-quality face-to-face professional development (PD) is challenging. Our study developed and compared the effectiveness of an online PD for middle-school science teachers working in remote, rural areas of Kansas with an evidence-based traditional face-to-face PD with the goal of…

In the last 30 years, there has been an ongoing discussion about the effectiveness of Professional Development (PD) programs, which aims to promote reform-based Science Education (SE). Among the many, different trends of reform-based science teaching, inquiry-based approaches hold a dominant role. This study shows how teachers' practices were…

Research has highlighted the significant decline in teachers' implementation of newly acquired teaching practices following professional development (PD), primarily attributed to the absence of follow-up support. Even science teachers who have participated in intensive PD programs often encounter challenges in integrating new teaching practices…

This article focuses on the impacts of a program designed to prepare elementary classroom teachers to mentor preservice teachers for effective science instruction. The mentor preparation program was grounded in research on effective science instruction and learning-focused mentoring. The goals of the mentoring professional development were to (a)…

The purpose of this phenomenological case study was to study how secondary school science teachers describe their lived experiences of professional development (PD) in Punjab (Pakistan). The study included 15 secondary public school science teachers using purposive sampling from Punjab. Semistructured, in-depth phenomenological interviews were…

Providers of K-12 in-service teacher science professional development programs (PDPs) in the United States are moving to address recent and unprecedented policymaker calls to close achievement gaps in K-12 science learning. Our systematic review of primary, peer-reviewed equity-focused PDP studies is intended to inform this movement. We structured…

Secondary students with learning disabilities are likely to learn science in an inclusive classroom. Their success often depends on teachers' ability to support their literacy needs. In this quasi-experimental study, we examine the effect of teacher' involvement in intensive professional development designed to deepen secondary science teachers'…

In recent decades, schools in most Western countries, including the United States, have become increasingly culturally diverse. As global migration rises, cultural diversity in schools will continue to grow. Though an expansive research base has shown that teacher attitudes play an important role in student performance, comparatively little is…

This exploratory case study centered on 3 beginning elementary science teachers who experienced variations in practice-based instructional approaches within their elementary teacher development sequence. We define "practice-based instructional approaches" as engaging with teaching approximations that occur in authentic classroom settings…

The inclusion of engineering practices poses a challenge for many science teachers trying to meet the expectations of the Next Generation Science Standards because they lack formal training in engineering. This, however, may provide an opportunity for science teacher educators striving to improve the use of learner-centered teaching practices by…

The Teacher Academy in the Natural Sciences (TANS) provided middle school (U.S. Grades 6-8) teachers (N = 81) with intensive professional development in chemistry, geosciences, and physics through 13 days of face-to-face instruction that was extended with 2 online science modules per discipline. Because we administered online module assessments…

Elementary school teachers' perceptions of school resources (i.e., material, human, and social) for teaching science to diverse student groups were examined across three school districts from one state. As part of a 3-year curricular and professional development intervention, we examined the effect on teachers' perceptions after their first year…

This study investigated how contextual factors influenced the sustainability of outcomes from a 3-year, state-funded professional development program that provided science assistance for K-2 teachers in small, rural school districts. The research used a case-study approach with a purposive sample of five elementary schools that varied in…

This paper reports the results of an investigation of how a professional development content course based on the Physics and Everyday Thinking (PET) curriculum affected the teaching practices of five case study elementary school teachers. The findings of this study highlight different ways that teachers use what they learn in content courses to…