Education Commons^™

Insights Into The Beliefs And Practices Of Preservice Elementary Mathematics Teacher Educators: A Naturalistic Inquiry, Linda Ann Arnold

Doctoral Dissertations

The purpose of this naturalistic inquiry was to explore and analyze aspects of the reported beliefs and practices of a group of preservice elementary mathematics teacher educators. Until now, researchers have had little understanding of beliefs and practices of teachers in elementary mathematics methods classrooms, despite the fact that teacher educators’ beliefs and practices have profound effects on what happens in thousands of classrooms every day. The qualitative research in this study offered insights with the potential to inform higher educational practice in regard to the preparation of elementary mathematics teachers and mathematics teacher educators. Participants were six professors and …

Factors That Affect The Ability Of Novice Science Teachers To Teach For Nos Understanding, Bennett Alexander Adkinson

Doctoral Dissertations

Novice science teachers face a multitude of instructional, curricular, and institutional constraints that affect their classroom decisions. Emphases from their teacher training programs interact with and compete against the realities of professional teaching. This qualitative comparative case study attempts to look at the interactions of novice science teachers with the reform-based practice of nature of science (NOS) instruction. Teacher training programs teach their pre-service science teachers about NOS and try to emphasize the importance of NOS understanding on student scientific literacy, but little is known about how science teachers view and approach NOS once they are free from the constraints …

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 …

Microwave-Enhanced Chemistry Of Organotrifluoroborates, Vitali Ilia Coltuclu

Doctoral Dissertations

This dissertation contains a summary of the research efforts focused on the utiliza- tion of microwave technology in organoborate chemistry. More specifically, the cen- tral topic is focused on the chemistry of potassium organotrifluoroborate compounds that have recently attracted a lot of attention as useful reagents for diverse transfor- mations in organic synthesis such as, cross-coupling, homocoupling, as well as 1,2- and 1,4-addition reactions. The use of microwave radiation in these and other reac- tions is particularly appealing for improving and facilitating synthetic procedures by reducing reaction times, minimizing by-product formation, and increasing reaction yields. In this dissertation, we combine …

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 …