Grappling with uncertainty is an essential element of students' science learning and sense-making processes, yet literature is limited regarding how teachers can facilitate and use student scientific uncertainty as a pedagogical resource in their classrooms. Furthermore, progress on pedagogical practice depends on both the ability to notice one's…

Science teachers' beliefs about teaching and learning are a vital component of teachers' professional competence and are often assumed to impact classroom practice. To date, these beliefs have been predominantly investigated regarding teaching and learning in general or for a particular science subject (e.g., physics). It remains to be determined…

Attaining the vision for science teaching and learning emphasized in the Framework for K-12 Science Education and the next generation science standards (NGSS) will require major shifts in teaching practices in many science classrooms. As NGSS-inspired cognitively demanding tasks begin to appear in more and more science classrooms, facilitating…

This instrumental case study examines how secondary biology teachers in a professional learning community (PLC) negotiated the meaning of the "Next Generation Science Standards" ("NGSS") in a year-long process of redesigning their curriculum. The PLC consisted of six biology teachers, five females and one male, who co-planned…

Current science education research and policy highlight the need to conceptualize scientific disciplines not only based on a view of "science-as-knowledge" but also on a perspective of "science-as-practice," placing an emphasis on practices such as explanation, argumentation, modeling, and communication. However, classroom…

This study developed learning progression-based measures of science teachers' content knowledge (CK) and pedagogical content knowledge (PCK). The measures focus on an important topic in secondary science curriculum using scientific reasoning (i.e., tracing matter, tracing energy, and connecting scales) to explain plants gaining weight and…

The theoretical construct of teacher noticing has allowed mathematics teacher educators to examine teacher thinking and practice by looking at the range of activities that teachers notice in the classroom. Guided by this approach to the study of teacher thinking, the central goal of this exploratory study was to identify what prospective science…

This investigation explores the effectiveness of a teacher preparation program aligned with situated learning theory on preservice science teachers' use of technology during their student teaching experiences. Participants included 26 preservice science teachers enrolled in a 2-year Master of Teaching program. A specific program goal was to…

As the context of human life expands from personal to global, a new vision of scientific literacy is needed. Based on a synthesis of the literature and the findings of an online survey of South Korean and US secondary science teachers, we developed a framework for scientific literacy for South Korea that includes five dimensions: content…

Investigates associations between students' (n=489) perceptions of their biology teacher's behavior and their laboratory learning environment with student attitudinal, performance, and achievement outcomes. Finds that associations between attitudinal outcomes and learning environment dimensions assessed by the Science Laboratory Environment…

Addresses the teacher's role in the integration of science and technology studies within an educational reform in Israeli junior high schools. Concludes that a realistic goal would be to enable science and technology teachers to cooperate with one another. Contains 35 references. (DDR)

Investigates the responses of a sample of preservice biology teachers enrolled in a teaching methods course to a casual question about why water rose in a jar inverted over a burning candle placed in a pan of water by formulating and testing six hypotheses. (Contains 43 references.) (Author/YDS)

Project LIFE, a state systemic initiatives professional development program for middle-grade life science teachers, has been successful in improving the science content knowledge, process skills, and attitudes toward teaching science of the teachers participating in the project. The essential characteristics of this project are described as a…

We studied the outcome of a professional development opportunity that consisted of 2-week-long resident institutes for teams consisting of a secondary science teacher and two students. The science content of the National Science Foundation (NSF)-funded professional development institute was monarch butterfly ecology. The first institute took place…