A significant body of scholarship in Physics Education Research (PER) has documented that students have intuitive knowledge resources that they use to make sense of the physical world. Similarly, for physicists, symmetry is fundamental to making sense of the universe. In this dissertation, I explore students' intuitive resources related to…

The central focus of my dissertation concerns the issue of representation. The issue of representation is important for science education research for two reasons: (1) the use of external representation in science teaching and learning, particularly in chemistry education, is ubiquitous as microscopic entities are not directly visible, and (2) the…

The central focus of my dissertation concerns the issue of representation. The issue of representation is important for science education research for two reasons: (1) the use of external representation in science teaching and learning, particularly in chemistry education, is ubiquitous as microscopic entities are not directly visible, and (2) the…

A goal of undergraduate science education is to help students develop "personal epistemologies" like those used by scientists (Windschitl et al., 2008). "Epistemic understandings" around the nature and process of science are crucial in the development of personal epistemologies comparable to scientists. However, many…

This paper is a proposal, project, and dissertation for Kenneth Johnson, Doctor of Philosophy degree in Science Education, in the Graduate College of The University of Iowa. I propose analyzing the writing assignment in an undergraduate online physics course offered by a small midwestern community college (CC). The goal is to study how Writing to…

Validated conceptual multiple-choice surveys administered before and after instruction in relevant concepts can be useful tools to gauge the effectiveness of curricula and pedagogical strategies. Here we discuss the use of four different validated surveys to investigate student understanding: The Energy and Momentum Conceptual Survey (EMCS), the…

This study investigated evidence of how students' mental models of fundamental kinematic relations evolved (i.e., developed cognitively over time) as observed during an introductory course in calculus-based classical mechanics. The core of the curriculum is based on a claim known as Galileo's principle of relativity. The course material comprised…

The overall achievement levels of Somali students in Minnesota's urban schools are considerably lower than their peers. The Minnesota Department of Education (MDE), 2023) reported that only 5% of all tested Black or African American students identified as English language learners met or exceeded the standards in science, 21.7% in reading, and…

Extant literature lacks an explanation of the thought processes used by secondary school science teachers to interpret students' scientific models that are comprised of drawing activities. In this exploratory study, a constructivist grounded theory (CGT) was developed to generate an interpretive understanding. The CGT was generated from…

Concept inventories are widely used in physics education research, yet numerous studies show that concept inventories measure dramatically different learning gains in different demographic groups. Prior studies show that the performance gaps between demographic groups are already present in their preinstruction responses, suggesting that the…

Today's high school graduates are required to digest and interpret massive amounts of information related to science. National standards documents in science education promote the development of skills to effectively evaluate the credibility of scientific information, with the goal of producing citizens capable of making scientifically informed…

Children often discuss science and nature topics in their everyday conversations with their parents; however, these conversations are not always scientifically accurate. Some researchers argue that these scientifically incorrect conversations interfere with children's learning by reinforcing children's misconceptions (Shtulman, 2017). Others argue…

Students will very often write incomplete explanations when asked to do so. This may be due to various reasons, including but not limited to a lack of understanding of the content or a lack of motivation. Developing an understanding of how students form and orally express scientific explanations (i.e., participating in scientific discourse) and…

In 2013, a new set of science standards was introduced for K-12 science education, called the Next Generation Science Standards (NGSS), which focused on three dimensions of science learning that work together: disciplinary core ideas, crosscutting concepts, and science and engineering practices. These standards are novel in their emphasis on…

Calls to transform introductory college physics courses to include scientific practices require assessments that can measure the extent to which these transformations are effective. Such assessments should be able to measure students' abilities to intertwine important concepts with practices in which scientists engage. In addition to evaluating…