We need a critical mathematics. Our ability to enact social change through teaching mathematics and through critical research in mathematics education is severely limited by the canon of mathematical knowledge and the ideology that declares mathematical knowledge as certain. In this dissertation I extend Carspecken's critical action theory to…

Humans have long sought to understand the forces that shape the diversity of living creatures on our planet. This work is primarily concerned with examining one such force--the historical action of natural selection--from practical, philosophical, and pedagogical perspectives. The first half is concerned with a suite of genetic mechanisms in…

Mathematics scores on the 2019 National Assessment of Education Progress increased by only two points for both fourth and eighth grade students since 2007, indicating that students continue to struggle in mathematics (National Center for Educational Statistics, 2007; U.S. Department of Education, 2019). The development of both conceptual and…

This autobiographical study of teaching and learning Algebra 1 was developed to examine classroom experiences through the lens of the researcher and to explore the perceptions of teachers and students involved in the study. The goal was to identify the quality, meaningful educational experiences in the classroom which led to the development of…

Recommended learning goals for students in introductory statistics courses include the ability to recognize and explain the key role of randomness in designing studies and in drawing conclusions from those studies involving generalizations to a population or causal claims (GAISE College Report ASA Revision Committee, 2016). The purpose of this…

This dissertation focuses on the ways in which conceptual modeling illuminates, supports, and enhances historical thinking; and examines the extent to which modeling can help students get past the misconceptions that form barriers on their way to gaining better understanding. Conceptual modeling is done in four phases---preparation, development,…

This dissertation report follows a three-paper format, with each paper having a different but related focus. In Paper 1 I discuss conceptual analysis of mathematical ideas relative to its place within cognitive learning theories and research studies. In particular, I highlight specific ways mathematics education research uses conceptual analysis…

As science becomes increasingly computationally intensive, the need for computational thinking (CT) and computer science (CS) practices in K-12 science education is becoming paramount. Incorporation of CT/CS practices in K-12 education can be seen in national standards and a variety of allied initiatives. One way to build capacity around an…

This mixed methods study was designed to uncover evidence of change to mental models about organizational systems resulting from participation in a simulation game that is based on a system dynamics model. Thirty participants in a 2 day experiential workshop completed a pretest and posttest to assess learning about particular systems concepts.…

Intercollegiate athletics have received considerable attention by scholars in higher education. Despite this wide treatment by scholars, there is little examination of the athletics director. Most of the published research on athletics directors disproportionately focuses on the responsibilities of the athletics director, the pressures of the…

This dissertation explores how pre-service teachers conceptualize the relationship between justice and practice, and then navigate the tensions of their student teaching context to enact their beliefs in their teaching practice. Starting from the assumption that all teachers must understand how their practice challenges rather than reproduces…

Multi-digit subtraction is difficult for students to learn. The purpose of this study is to explore how second-grade students communicate their understanding of double-digit subtraction through the use of manipulatives/tools. This qualitative study reports on six case studies of second-grade students where clinical interviews were the main source…

The purpose of this qualitative study was to explore the experiences of undergraduate college students attending a public and a private university in the State of Kuwait to understand how they develop their understanding and valuing of information literacy and information literacy standards. Data from student and faculty interviews and student…

The objective of this dissertation was to design and study a transformative model of climate change education that foregrounded sociopolitical processes and was socially relevant to Black and Latinx urban high school students. The intervention was implemented at the Mann-UCLA Community School in South Los Angeles while distance learning was…

There has been a call from the national community of biologists and biology educators to increase biological literacy of undergraduate students, including understanding and application of core concepts. The structure and function relationship is a core concept identified by the wider biology community and by physiology faculty. Understanding of…