This qualitative practice-based study explores the efficacy of reformed-based science teaching approaches in fostering meaningful student engagement within elementary science classrooms, framed within the science-as-practice paradigm. Utilizing three theoretical frameworks, the Next Generation Science Standards (NGSS) and Ambitious Science…

The implementation of California Assembly Bill (CAB) 705 has impacted how students enroll into Physics courses. This paralleled anecdotal evidence of a decline in student mathematical abilities. The goal of this research study was to determine the existence of a relationship between CAB 705 and student success in specific Physics courses. This…

My dissertation is a pre-mid-post-test, quantitative research design, including surveys and written assessments, to answer these research questions: 1. How do students' science mindset vary over time when engaged in science inquiry activities? Is there a difference between male and female students? 2. Is there a relationship between 7th grade…

The under-representation of women in undergraduate science courses is well-documented. One significant challenge is that women may both perceive and receive less recognition from their science peers about their abilities as scientists than men. Here we investigate the presence and nature of such gender biases in peer recognition in the discipline…

For decades, stark disparities in academic achievement have existed between racially, ethnically, and linguistically diverse students and White students. These discrepancies have resulted in significantly less of these marginalized students enrolling in higher level science courses and, subsequently, pursuing careers in science fields. While these…

The longstanding call to prioritize science education has gained momentum, particularly with the noticeable changes aligned with reform-era practices. This quantitative study explored the relationship between policy, time allocation, and teacher practices in elementary science education, guided by constructive learning theory as the theoretical…

I conducted a set of four studies to catalogue and examine course elements, including active learning strategies and evidence-based teaching practices, and their influence on student experiences and performance in college biology classes. In the first study, I defined the term "active learning" and catalogued the 300[plus] strategies…

As researchers strive to work toward equity in education, attention to how teachers and teacher educators develop asset-based perspectives and what role power plays in this process has become a focus in teacher education (Carter Andrews et al., 2019; Philip, 2019; Souto-Manning & Martell, 2019). Within science teacher education, researchers…

The effect of class size on student learning has numerous policy implications and has been a major subject of conversation and research for decades. Despite this, few studies have been done on class size in the context of university settings or physics courses. This dissertation helps address that gap in the literature by quantitatively analyzing…

Organic Chemistry is considered by many to be the quintessential "weeder course", widely identified in the premed and STEM persistence literature as a gatekeeper to students interested in STEM or health fields (Barr, Gonzalez, & Wanat, 2008; Lovecchio & Dundes, 2002). There has therefore been considerable interest in determining…

Teaching science concepts for conceptual understanding has its challenges. Promoting conceptual change in the science classroom can be difficult because most concepts are complicated and counter-intuitive. This dissertation research aimed to determine the effect of teaching for conceptual understanding models on pre-service teachers' conceptual…

Next Generation Science Standards (NGSS) science and engineering practices (SEPs) involve commands of the English language in writing, speaking, reading, and listening. Language tasks embedded in NGSS SEPs require English learners (ELs) to develop science skills and understanding and language proficiency simultaneously. Sense of self-efficacy…

This dissertation measures the multicultural teaching competency (MTC) and the frequency at which science educators use culturally relevant educational practices (CREPs). This study's mixed-method, convergent design is grounded in critical theory, and the MTC and culturally relevant education (CRE) framework. Findings suggest that the CREPs-F…

Instructional explanations are an ubiquitous component of classroom instruction, but are relatively neglected in science education when compared to other facets of teaching and learning. The ubiquity of instructional explanations and their potential to stimulate learning in students suggests that they should garner more attention from science…

The "A Nation at Risk" report was released in 1983 and enumerated systemic flaws in the U.S. education system, highlighting science education as an area of concern (Denning, 1983). Over a generation later, a new opportunity has emerged to improve science education for all students, and especially the youngest learners. The Next…