Science and Mathematics Education Commons^™

A Criteria-Based Evaluation Of Environmental Literacy Plans In The United States, Karena Ruggiero

Doctoral Dissertations

In response to the lack of formalized environmental education in the United States, 48 states are in the process of developing Environmental Literacy Plans (ELP) through their state environmental education organization (SEEO). The North American Association of Environmental Educators (NAAEE) produced guidelines intended to inform the states writing and development of their ELP. These guidelines provide a framework for the integration of environmental education into current state curricula, propose graduation requirements for environmental literacy, suggest steps for teacher professional development, detail assessment strategies and propose funding sources and policy action steps. Due to large variations in educational systems, policies, and …

Out Of School Time Science Programs: Examining A Program’S Impacts On The Science Identities Of Middle School Female Participants, Elizabeth Ripley Mactavish

Doctoral Dissertations

Science education reform efforts emphasize teaching science for all Americans, and identify scientific literacy as the principle goal of science education (American Association for the Advancement of Science [AAAS], 1993; National Research Council [NRC], 1996). Despite the goal of scientific literacy, some students, especially females and minorities, consider science irrelevant to their personal interests or career goals. Additionally, research pinpoints middle school as a period when female students begin to lose interest in science (Farenga, 1999; Hill et al., 2010).

Decades of research have documented the gender achievement gap, yet little research has been focused on the science identity gap …

The Impacts Of Curriculum Reform For An Introductory Undergraduate Biology Course Sequence, Anna Jo Juanita Auerbach

Doctoral Dissertations

For decades, educators and policy makers have called for reform in undergraduate biology education to produce a workforce capable of navigating the challenges of society today (NSB, 1986). The American Association for the Advancement of Science (AAAS) outlined recommendations to enact these changes in the Vision and Change in Undergraduate Biology Education final report (AAAS, 2011). These recommendations included restructuring curricula to focus on core biological concepts and competencies, implemented via student-centered practices, with a campus-wide commitment to change, and involving the entire biology community in the reform. The University of Tennessee, Division of Biology, implemented curriculum changes to their …

A Moving Imagination In Spaces Of Distress: Teacher And Student Agency In A Science Classroom, Annie Sunshine Adamian

Doctoral Dissertations

This qualitative study explored the ways in which our classroom community (students and teacher) engaged with humanizing pedagogy in a seventh grade science classroom, toward the full development (e.g. personal, social, emotional, academic) of our classroom community, and the dismantling of inequitable practices and unjust policies that we recognized in our science classroom, school and/or community while utilizing the process of teacher and student participatory action research (tsPAR) (Adamian, 2015) and Critical Race Praxis for Educational Research (CRP-Ed) (Jayakumar & Adamian, 2015).

This study examined the complexities of mutually engaging across differing positionalities while intentionally working in spaces of distress …

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 …

Blended Learning In Chemistry Laboratory Courses: Enhancing Learning Outcomes And Aligning Student Needs With Available Resources, Shayna Brianne Burchett

Doctoral Dissertations

"Freshman science courses are intended to prepare students for the rigor and expectations of subsequent college science. While secondary education aims to prepare students for the college curriculum, many incoming freshman lack the sense of responsibility for their own learning that is essential for success in a college-level course. The freshman general-chemistry laboratory course at Missouri University of Science and Technology (Missouri S&T) was identified as a bottleneck course with a demand beyond accommodation capacity. To address the bottleneck and develop a sense of learner responsibility, a decision was made to investigate laboratory course delivery strategies. As a result of …

Conditions Supporting The Development Of Scientific Argumentation In High School Chemistry Classrooms: The Role Of Question Prompts And An Interactive Simulation, Tugba Keser

Doctoral Dissertations

The purpose of this case study was to provide benefit to preservice and inservice science teachers, who have an interest in applying scientific argumentation in their high school chemistry instructions, by investigating role of question prompts and an interactive simulation supporting the development of scientific argumentation. In particular, the study examined the quality of students’ arguments changing over time in scientific argumentation when they constructed and defended their arguments using the “Gas Properties” computer simulation. For this purpose, forty-seven11^th grade students from four classes first worked in pairs and then, all the pairs returned the classroom for discussion. One …

Undergraduate Women In The Stem Fields And The Use Of Academic Library Resources And Services, Rebecca O'Kelly Davis

Doctoral Dissertations

Women majoring in the Science, Technology, Engineering and Mathematics (STEM) fields are few in number. This research will be conducted in an effort to understand the use of academic library resources and services by undergraduate women in the STEM fields. Data collection methods consisted of three focus groups and five interviews with undergraduate women in the STEM fields, and three focus groups and two interviews with academic librarians and library staff familiar with library resources and services in each of the STEM fields conducted at a Research I University in the USA. Grounded theory principles provided a basis for the …

Development Of The Setis Instrument To Measure Teachers' Self-Efficacy To Teach Science In An Integrated Stem Framework, Monica Clutch Mobley

Doctoral Dissertations

Integrated STEM teaching and learning has gained increased attention in recent years as schools try to prepare students for 21^st century careers. Goals of integrated STEM teaching are in alignment with goals of science education reform efforts as evident in recent document such as the Next Generation Science Standards (Achieve, Inc., 2013) and efforts are underway to encourage science instruction from within an integrated STEM framework. Teaching science content in an integrated STEM context is a complex act placing great cognitive and emotional demands on teachers, many of whom lack experience with this manner of teaching and may also …

The Effects Of A Varied Method Of Instruction On Student Achievement, Transfer, Situational Interest, And Course Retention Rates In Community College Developmental Mathematics, Kevin L. Mccandless

Doctoral Dissertations

The purpose of this quasi-experimental study was to compare the effects of a varied method of instruction on student achievement, knowledge transfer, situational interest, and course retention rates, relative to a non-varied method of instruction, in community college developmental mathematics. The varied method of instruction consisted of active learning teaching practices with foundations in social constructivism, whereas the non-varied method of instruction was founded in Cognitive Load Theory and consisted primarily of explicit instruction and individual practice.

An initial sample of 139 students who enrolled in six sections of Beginning Algebra at an urban community college in Northern California participated …

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 …

Developing Spatial Reasoning Skills In General Chemistry Students, Deborah L. Carlisle

Doctoral Dissertations

The study of organic chemistry requires the understanding and use of spatial relationships, which can be challenging for many students. Prior research has shown that there is a need to develop students’ spatial reasoning skills. To that end, this study implemented guided activities designed to strengthen students’ spatial skills, with the aim of preparing students for organic chemistry and other future STEM courses. Students, taking the second semester of a two-semester general chemistry course, engaged in these activities. This study followed a quasi experimental design, in which the experimental (n = 209) and the control group (n = 212) were …

Rehearsal And Enactment For Teaching In Urban School Settings: A Qualitative Study Investigating The Connections Between A Math Methods Course And Fieldwork, Rajeev Virmani

Doctoral Dissertations

In this dissertation, I studied teacher education reform efforts aimed at improving the preparation of preservice teachers through the use of rehearsals in a math methods class. As many experts in the field of teacher education call for curricula in which preservice teachers learn from and in practice, I investigated a type of pedagogy called rehearsals within a practice-based teacher education setting that may afford preservice teachers with the initial preparation needed to become effective teachers.

In this qualitative study, I examined how three preservice teachers and math methods instructors rehearse the high leverage practice of leading a whole-class discussion. …

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 …

Teaching And Learning Algebra 1 Via An Intelligent Tutor System: Effects On Student Engagement And Achievement, Karen Kerner Lucas

Doctoral Dissertations

This study investigated the implementation and outcomes of blended learning that integrated Apangea Math, an online intelligent tutor system (ITS), with face-to-face instruction for the teaching and learning of Algebra 1. It took place in a Title I urban high school where 75 ninth grade students and their teachers enacted the blended learning program for one semester. Students from the same high school who received face-to-face instruction alone during a previous semester served as a comparison group. Flow theory was proposed as an explanation for why the ITS program was expected to increase student engagement and improve student achievement.

This …

Teacher Perceptions Of Their Science Teaching And Student Learning For Diverse Learners, Yolanda Kirkpatrick

Doctoral Dissertations

The attention to the preparation of science education teachers is important to facilitate equitable learning opportunities and participation in science experiences (American Association for the Advancement of Science, 1990; Lee & Buxton, 2010; Sirin, 2005). Disproportionate numbers of teachers are inadequately prepared to teach diverse learners (Darling-Hammond & Bransford, 2005; Irvine, 2003; Murnane & Phillips, 1981; Oakes, 1990; Zeichner, 1992). Wise (2001) describes teacher preparation in this country as the dirty little secret in education. By this, Wise was referring to the inadequate education and training of teachers that remained a silent part of the discourse on teacher preparation.

The …

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 …

Deaf Education Preservice Teachers’ Perceptions Of Scientific Inquiry And Teaching Science To Deaf And Hard Of Hearing Students, Shannon Carol Graham

Doctoral Dissertations

The purpose of this dissertation was to describe preservice teachers’ perceptions of scientific inquiry and science teaching to deaf and hard of hearing students. Participants were four deaf education preservice teachers enrolled in a graduate level course on content area methods during their professional internship year. The instructor employed implicit and explicit reflective pedagogy for the science methods section and focused on scientific practices. Research questions guiding this study are as follows: 1) What are deaf education preservice teachers’ perceptions of scientific inquiry? and 2) What are deaf education preservice teachers’ perceptions of science teaching and learning among deaf and …

The Engineering Design Process As A Model For Stem Curriculum Design, Krystal Sno Corbett

Doctoral Dissertations

Engaging pedagogics have been proven to be effective in the promotion of deep learning for science, technology, engineering, and mathematics (STEM) students. In many cases, academic institutions have shown a desire to improve education by implementing more engaging techniques in the classroom. The research framework established in this dissertation has been governed by the axiom that students should obtain a deep understanding of fundamental topics while being motivated to learn through engaging techniques. This research lays a foundation for future analysis and modeling of the curriculum design process where specific educational research questions can be considered using standard techniques. Further, …

The Relationship Between Teacher Absenteeism And Fourth-Grade Student Mathematical Achievement, Charles Michael Brouillette

Doctoral Dissertations

Within public schools throughout the United States, an emphasis has been placed on improving education for all students. In turn, this has resulted in legislators and policymakers placing an emphasis on assessing student learning and holding the education community accountable. In this study, the researcher examined one variable in the accountability effort: teacher absenteeism. The major purpose of this study was to examine the relationship between teacher absenteeism and fourth-grade student mathematical achievement.

Data for this study were generated from nine school districts located in northern Louisiana. Data consisted of attendance records of fourth-grade teachers and student performance on the …

The Separate And Collective Effects Of Personalization, Personification, And Gender On Learning With Multimedia Chemistry Instructional Materials, Shannon James Halkyard

Doctoral Dissertations

Chemistry is a difficult subject to learn and teach for students in general. Additionally, female students are under-represented in chemistry and the physical sciences. Within chemistry, atomic and electronic structure is a key concept and several recommendations in the literature describe how this topic can be taught better.

These recommendations can be employed in multimedia instructional materials designed following principles understood through the Cognitive Theory of Multimedia Learning. Additionally, these materials can expand the known use of principles like personalization (addressing the learner as "you") and test prospective design principles like personification (referring to abstract objects like atoms as "she" …

Investigation Of The Misconceptions Related To The Concepts Of Equivalence And Literal Symbols Held By Underprepared Community College Students, Terrence Joseph Maguire

Doctoral Dissertations

Many students struggle to learn mathematics in K-8 grades. Research has shown that lower grade students often misconceive equivalence as an operation rather than a relation, and that students also form various misconceptions of literal symbols. Many students arrive at college seriously underprepared in mathematics, but there is scant research on the difficulties and misconceptions of these college students. The purpose of this research was to learn if underprepared community college students harbor misconceptions of equivalence and of literal symbols similar to K-8 students.

For this study, 191 underprepared college students were surveyed for misconceptions by a questionnaire of 43 …

The Impact Of Singapore Math On Student Knowledge And Enjoyment In Mathematics, Jenny Taliaferro Blalock

Doctoral Dissertations

The purpose of this study was to investigate the effect of the Singapore Math curriculum and approach to teaching on enjoyment and knowledge in mathematics in one rural school district in north Louisiana. The quantitative data used were collected from a Math Enjoyment Inventory and a mixed skills pre and posttest. Additional supplemental data were collected from a Teacher Response Form. All data were gathered in the 2010–2011 school year, and an intact population was utilized. Participants were categorized into two groups, the Singapore Math group and the traditional math group. The participating district implemented Singapore Math in the fall …

Exploring The Relationship Between Orpda And Teachers' Conceptual Understanding Of Place Value, Jamie Howard Price

Doctoral Dissertations

The purpose of this case study was to understand whether or not the use of an invented number system, called Orpda, helped teachers develop a deeper understanding of place value in hopes that this will translate into their own teaching of place value concepts. Thirteen teachers enrolled in a graduate mathematics education course served as the participants for this study. Data were collected from teachers’ reflections on various activities related to Orpda, pre- and post-Orpda concept maps teachers created, online discussions between the teachers, teacher demographic sheets, and an interview with the instructor of the course.

Analysis of the teachers' …

Elementary And Secondary Science Teachers Negotiation Of Controversial Science Content: The Relationships Among Prior Conception Appropriation, Thinking Disposition, And Learning About Geologic Time, James Harold Roberson

Doctoral Dissertations

A major component of the values people place on science and their attitude toward it is their openness to new ideas or overall open-mindedness. An individual’s values and attitudes become integrally connected to their prior knowledge and conceptions regarding science and science content. Sometimes the nature of a natural phenomenon and the scientific explanation for the phenomenon is controversial. A controversial scientific concept is one that evokes emotion and forces individuals to assess the values associated with this content and make assessments of their attitudes toward it. This is especially true during learning. The purpose of this study was to …

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 …