Science and Mathematics Education Commons^™

Building Capacity For Academically Productive Talk: The Development Of Teacher Leaders In Science Professional Development, Renee Affolter

Doctoral Dissertations

Despite decades of research on the type of classroom dialogue that supports collaborative student sensemaking and professional development efforts to support such dialogue, opportunities for students to incrementally deepen their understanding of science ideas through engagement in science practices and to engage in complex reasoning and argumentation through classroom talk is limited in most K-12 science classrooms (Driver, Newton, & Osborne, 2000; Lemke, 1990; Michaels, Shouse, & Schweingruber, 2008; Mortimer & Scott, 2003; C. O’Connor, Michaels, & Chapin, 2015; Reinsvold & Cochran, 2011; Scott, Mortimer, & Aguiar, 2006; Weiss, Pasley, Smith., Banilower, and Heck, 2003; Wilson, Schweingruber, & Nielsen, 2015). …

Perceptions Of Physics Teachers In Singapore About Curriculum Sequencing, Lay Lean Fong

Doctoral Dissertations

Curricular sequencing is central to instruction design and enactment. If carefully planned for, the order of topics to be taught would determine how the fundamentals of the discipline can be presented and introduced to learners, in a sequence that eases them into more complex ways of reasoning and thinking about the domain. These sequences or learning progressions often reflect the experts’ conceptual schemas of the discipline and are conceived as strategic models for instruction (Duschl et al., 2011).

The varied findings from current research on learning progressions underscore the complexity of teaching and learning, and imply that even ‘well-crafted’, standards-based, …

A Semiotic Analysis Of Linguistic And Conceptual Development In Mathematics For English Language Learners, Hyunsook Shin

Doctoral Dissertations

This study explores how an elementary mathematics teacher supported English language leaners’ (ELLs’) academic language and concept development in the context of current high- stakes school reform. The conceptual frameworks informing this study include Halliday’s theory of systemic functional linguistics (e.g., Halliday & Matthiessen, 2014) and Vygotsky’s sociocultural theory of concept development (Vygotsky, 1986). Specifically, this study analyzes the interplay between academic and everyday language and how this interplay can facilitate the development of what Vygotsky referred to as “real” or complete concepts as students shift from “spontaneous” to more “scientific” understanding of phenomenon (Vygotsky, 1986, p.173). This year-long qualitative …

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 …

Training In Summarizing Notes: Effects Of Teaching Students A Self-Regulation Study Strategy In Science Learning, Michelle Mendoza Nebres

Doctoral Dissertations

The last two decades of national data assessments reveal that there has been a sharp decline in nationwide standardized test scores. International assessment data show that in 2012 a very low amount of American students were performing at proficiency or above in science literacy. Research in science literacy education suggests that students benefit most when they are self-regulated (SR) learners. Unfortunately, SR poses a challenge for many students because students lack these skills. The effects of having learned few SR strategies at an early age may lead to long term learning difficulties—preventing students from achieving academic success in college and …

A Novel Approach To Using Personal Response Systems And Diagrams To Foster Student Engagement In Large Lecture: Case Study Of Instruction For Model-Based Reasoning In Biology, Johanna M. Fitzgerald

Doctoral Dissertations

At UMass Amherst a method of personal response system (clickers) use in large lecture biology called Guided Application of Model-based Reasoning (GAMBR) has been designed to give students experiences in reasoning like expert biologists: In large lecture biology many instructors appear to use clickers mainly as a quizzing and attendance tool. Less well documented and examined are uses of clickers to facilitate cognitive engagement in learning scientific models and skills. In GAMBR, clicker questions ask students to apply and perturb biological models; this is designed to engage them in model-based reasoning. In an attempt to understand such a course, an …

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 …

The Relationship Between Pedagogical Content Knowledge And Mathematics Teacher Questioning Strategies, Lynne Smith Nielsen

Doctoral Dissertations

The purpose of this study was to determine whether an intense two-week professional development program for middle school mathematics teachers, along with follow-up classroom visits, video review of lessons (with feedback), and two six-hour follow-up sessions each semester would improve teacher questioning strategies and promote higher-level questioning based on Bloom's (1956) Taxonomy of cognitive categories. A second purpose of the study was to determine whether, through reflection and instructor feedback, teachers would gain the ability to involve students in high press questioning situations. The third purpose of the study was to investigate whether relevant professional development would result in an …

Differences In Teacher Qualifications And The Relationship To Middle School Student Achievement In Mathematics, Carrie R. Ferguson

Doctoral Dissertations

The purpose of the study was to compare mathematics teacher preparation and experience to the achievement of middle school students (grades 6–8) on the mathematics section of the Texas Assessment of Knowledge and Skills (TAKS). Using a theoretical framework, the research examined the extent to which the teacher qualification variables were related to the student achievement. Measures of teacher qualifications included four independent variables: (a) number of mathematics content hours, (b) level of teaching certification, (c) number of years teaching experience, and (d) number of years teaching middle school/junior high mathematics. Participants in this causal-comparative study included 97 teachers and …