Science and Mathematics Education Commons^™

A Situated Perspective Of Rural Elementary School Mathematics Teachers’ Planning Practices, Ashley Paige Walther

Doctoral Dissertations

Rural areas are home to approximately 20% of the population in the United States. Schools that serve rural populations are geographically isolated and lack resources when compared to urban and suburban schools. Educators who serve students in rural schools are often born and raised in the same system in which they ultimately work. Elementary teachers are typically certified as generalists. As a result, many report a lack of confidence or proficiency in mathematics. This dissertation offers an analysis of the planning practices of rural elementary school mathematics teachers in a district located in the southeastern United States. The study sought …

The Impact Of Beliefs And Curricular Knowledge On Planning For Science: A Multisite Case Study Of Four Teachers, Jessica L. Horton

Doctoral Dissertations

This descriptive multisite case study details how the beliefs and curricular knowledge of four science teachers in a southeastern school district affected their planning for science instruction.

Through the analysis of interviews, think-aloud planning records for one unit of instruction, and related documentation, categories were identified and connections drawn to how their beliefs and knowledge influenced planning for instruction.

The four teachers in this study jointly expressed certain beliefs about how students best learn science. They expressed beliefs that students best learn science through hands-on activities, through discourse, and by building the student’s knowledge base. The teachers also expressed beliefs …

Undergraduate Perception Of Introductory Lecture And Laboratory Biology Instructors At The University Of Tennessee Knoxville, Katharina Denise Kendall

Doctoral Dissertations

Undergraduate students entering the higher education system are often unaware of the diverse teaching and learning community they will encounter, including the different instructor types who will teach their classes. In order to accommodate the growing numbers of enrolled students, the higher education system is increasingly reliant on contingent instructors such as non-tenure track faculty members and graduate teaching assistants (GTAs). This dissertation explores undergraduate student perspective of the different instructor types who teach introductory biology courses, with a focus on the University of Tennessee, Knoxville (UTK). The goal of this work is to provide insight regarding how perceived differences …

Sketchmate: A Computer-Aided Sketching And Simulation Tool For Teaching Graph Algorithms, Kristy Sue Van Hornweder

Doctoral Dissertations

In this dissertation, we developed and tested a sketching, visualization, and simulation tool called Sketchmate for demonstrating graph algorithms commonly taught in undergraduate computer science courses. For this research, we chose to focus on shortest path and network flow algorithms. Two versions of this tool have been implemented: 1) an instructor tool that supports computer-aided manual simulations of algorithms that augment traditional whiteboard presentations, allowing lectures to be more dynamic and interactive, and 2) a student tool that supports computer-aided manual practice of algorithms that enables students to work through homework problems more quickly while providing detailed incremental feedback about …

Professionalism: What Is It And Are We Teaching For It?, Brian K Tate

Doctoral Dissertations

With rising accountability standards and the need for content specialists within education, the qualifications of mathematics teachers have become increasingly scrutinized. For over three decades, within the parameters of educational reform, the need for the professionalization of teaching has reoccurred (Carnegie Task Force, 1986). When examining the nature of teacher professionalism, no concise definition within the educational community exists (Noddings, 1992). The purpose of this study was to take characteristics defined by the medical and law fields and use them to develop a definition of professionalism within mathematics education. Once a clear set of characteristics was identified, the study then …

Legitimate Peripheral Participation Of Secondary Educators In Scientific Research Experiences: Implications For Teachers' Understanding Of The Nature Of Science And Classroom Teaching, Matthew Phillip Perkins

Doctoral Dissertations

Both of the national reform efforts (AAAS, 1993; NRC, 1996) encouraged teachers to engage in professional development that included authentic scientific research experiences. The Department of Energy developed a program to match teachers with mentor scientists at national laboratories for three consecutive summers. Teachers produced and presented a poster summarizing their research at the conclusion of each summer.

The purpose of this qualitative multiple case study was to better understand how scientific research experiences impacted teachers. Six dimensions were examined: trajectory of participation, content knowledge development, mentor relationships, beliefs about the nature of science, teacher confidence, and classroom practice. These …

Professional Development: A Case Study Of Mrs. G, Sharilyn Kay Owens

Doctoral Dissertations

This dissertation is a case study of one teacher who participated in a project that investigated the effects of the Texas Instruments NavigatorTM, a wireless communication system on student algebra achievement and related pedagogy. The larger study, Classroom Connectivity in Promoting Mathematics and Science Achievement (CCMS) based at The Ohio State University (OSU), funded by the U. S. Department of Education, involved approximately 120 self-selected participants across the United States. A partial requirement for participation was agreement to attend professional development provided by the CCMS project. The professional development included a week-long summer institute at OSU prior to implementation of …

Representations Of Fractions: Promoting Students’ Mathematical Understanding, Thomas Edward Hodges

Masters Theses

Representations of mathematical ideas serve as a foundation for understanding mathematical concepts. Using and translating among a variety of representations promotes deep conceptual understanding and connections between mathematics topics, in addition to providing contexts for more advanced mathematics concepts. The importance placed on mathematical representations led to an examination of sixth grade middle school mathematics textbooks’ representation of fraction concepts. The chapters included in this thesis represent a portion of the work completed during the examination and an example of how representations of fractions can impact topics in secondary mathematics.