The direct involvement of students in conducting experiments in order to learn science has been a common part of U.S. educational practice since the late 19th century, the result of the rapid spread of what was known as the "laboratory method" of teaching. Those promoting the laboratory method recognized it as a new educational approach,…

The purpose of this quantitative pretest-posttest quasi-experimental study was to examine the effect on student success rates in biology courses with laboratory components taken via distance education at a California community college. This study examined success rates for nine different courses, including 98 sections (2,299 students) taught only…

The problem addressed through this study was the absence of a critical examination of laboratory exercises used with first-year nonbiology majors and the deployment of virtual laboratories in the biology department at the project site university without critical analyses associated with the efficacy of virtual labs. Grounded in Mayer's cognitive…

Ubiquitin is essential for eukaryotic life and varies in only 3 amino acid positions between yeast and humans. However, recent deep sequencing studies indicate that ubiquitin is highly tolerant to single mutations. We hypothesized that this tolerance would be reduced by chemically induced physiologic perturbations. To test this hypothesis, a class…

The purpose of this dissertation was to experiment with qualitative research methodologies while exploring the complexities of doctoral education, research practices, philosophies of inquiry, and other topics intersecting with(in) educational scholarship. My vision for this work was fueled by postmodernist critiques of humanist education,…

The ability to make informed decisions is a skill considered as one of the 21st century skills and is crucial as part of the critical thinking and problem-solving process in science and engineering. Despite its importance, students (e.g., beginning designers) often struggle with making informed design decisions that are well supported by relevant…

The primary purpose of this study was to compare academic variables from students participating in mixed teaching methods/course revitalization biology courses to those in traditional courses at two community colleges in Tennessee. A two-group comparison design using archived data was used, which evaluated differences in final grades, exam scores,…

Undergraduate physics laboratory curriculum has undergone significant modification in recent decades in response to research and recommendations from educational and professional organizations and stakeholders. These reforms address multiple issues, such as 1) lack of student agency in experimentation, 2) an incomplete framework for student…

Heavy metals are a recognized toxic environmental contaminant, even at very low concentrations. There have been well-known events in the last decade within the US of high amounts of lead in the drinking water supplies of cities, leading to detrimental effects within its population. Ways have been found to remove this metal, and others, from water…

Personalized learning is gaining popularity in online computer science education due to its characteristics of pacing the learning progress and adapting the instructional approach to each individual learner from a diverse background. Among various instructional methods in computer science education, hands-on labs have unique requirements of…

Having the ability to make informed decisions about health, financial investments, and even the weather are all important to our everyday lives. However, most people receive no formal education on how to read and understand data presented in formats such as data tables and graphs. Research within the field of statistical reasoning demonstrates a…

Active learning is widely recognized as superior to traditional passive, lecture-based techniques for fostering learning in STEM courses. Interactive, hands-on learning where students interact with their peers and physical systems is an effective type of active learning. As the need for scientists and engineers continues to grow, understanding and…

Synthesis writing is a common requirement in secondary schools and colleges, but it is often done ineffectively because students fail to engage the critical processes of selecting, organizing, and connecting information, which are the crux of synthesis writing. Therefore, it is imperative to teach students synthesis writing strategies. The present…

This dissertation's purpose was for examining the preparation of pre-service school-based agricultural education (SBAE) teachers in laboratory-based courses and discovering how experienced SBAE teachers describe the experiences which prepared them to be effective facilitators of laboratory instruction. Furthermore, we discovered SBAE teachers'…

It has been well-establishing in the field of educational research that traditional educational methods such as passive lectures and labs where students follow pre-designed procedures to verify information already told to them are not effective for promoting meaningful and lasting conceptual understanding. Alongside this knowledge have come a…