Pre-service science teachers develop their teaching practices within and across the university and school contexts of their teacher education programs. The practices and visions of teaching and learning emphasized in each context are often disjointed, a problem referred to as the "two-worlds pitfall." Responding to the call for teacher…

Resonance is a fundamental chemistry concept first introduced to students in General Chemistry I, reintroduced in Organic Chemistry I, and then utilized throughout other higher-level chemistry courses. A molecule or ion can be said to exhibit resonance when it can be represented by two or more chemical structures (i.e., Lewis structures) that…

The reasons particular people enjoy science, pursue science, and see themselves as science people, or not, are diverse and complex (Brickhouse, et al., 2000). The ways that teachers present science and value particular ways of knowing and doing in the classroom can influence which students see themselves as science people (Carlone et al, 2011).…

The purpose of this convergent parallel mixed methods study was to explore the use of personification stories as an instructional strategy by high school science teachers to inform the creation of a new model for personification storytelling to support science instruction. There are a limited number of models available to science instructors to…

As science teachers gain increasing access to resources through an ever-expanding resource system, the study of how science teachers decide which resources to use and how to use them becomes increasingly important and complex. When science teachers exercise agency to select and adapt resources in alignment with their context, teaching and learning…

The purpose of this narrative study is to share a comprehensive and holistic understanding of the teaching philosophies of Black women science teachers. The theoretical lenses of Critical Race Theory and Black Feminist Thought are used to explore historical and contemporary experiences of Black teachers over time, to explain how and why there are…

At the beginning of the COVID-19 pandemic, in March of 2020, education in the United States changed dramatically. Science teachers began to look at the implementation of ambitious and equitable science teaching practices differently. Employing the hermeneutic phenomenological framework, the purpose of this study was to investigate the lived…

The current study employs a qualitative, exploratory case study method examining the classroom practices of three 5th grade science teachers from two intermediate campuses within a school district in the Southwest. The study explores opportunities and barriers to high level questioning by teachers leading to critical thinking. Qualitative data…

Currently, studies on STEAM education or arts integration focus on students' experiences rather than teachers' challenges. Thus, the purpose of this dissertation is to set an example for policymakers, educators, and researchers, to provide better support for art-integrated mathematics and biology teachers by understanding their professional…

Uncertainties are inherent in education as learners encounter gaps in their awareness of topics, receive new information that potentially conflicts with prior understandings, and grapple with known unknowns in order to construct new knowledge. While researchers have shown that students productively struggling with problematized and uncertain…

High school science teachers are a unique subset of teachers with distinctive PD needs in content, pedagogy, and technology, yet there is scant research about PD from the perspective of secondary science teachers. This qualitative research study used narrative research methods with grounded theory to explore how a group of seven high school…

Global climate change (GCC) presents unprecedented global concerns, notably food supply limitations, unsustainable use of natural resources, and widespread environmental degradation. The International Panel on Climate Change (IPCC) reports a 0.85 °C increase in global average temperatures between 1880 and 2018 and a 50% increase in global carbon…

This dissertation study uses an alternative dissertation format to deliver two separate but interrelated studies. As a whole, the dissertation is connected by a single overarching research question: "What are the characteristics of effective, meaningful, and equitable science instruction through modeling and how do teachers' pedagogical…

This three-paper dissertation systematically investigates the methodology issues related to using observational systems to observe, analyze, and interpret teachers' reformed teaching practices within the K-12 classroom context. Each paper contributes a distinct perspective to evaluate instructional practices accurately, consistently, and…

This study thoroughly explores the relationships between the challenges faced by students and the alternative problem-solving strategies employed. By analyzing these connections, the research aims to offer a comprehensive understanding of how students address difficulties in science learning and the adaptive strategies they apply. Through this…