Education Commons^™

A Case Study Of A School-Supported Extracurricular Activity's Influence On Stem Identity And Interest For Females, Letta Meyer

Doctoral Dissertations

Even though there has been a narrowing of the gender gap in STEM, there is still a pronounced gap in the physical sciences, engineering, and computer science. Females who persist in these fields have a strong STEM identity, including developing specific STEM interests. Females can develop STEM identity through long-term, active involvement in extracurricular STEM programs. Extracurricular STEM programs significantly impact the persistence of females in the STEM pipeline. This case study examined the effect of Science Olympiad, an extracurricular STEM program, on current high school students and alumnae’s perceptions of their STEM identity and personal specific STEM interest. Potential …

Alleviating Mathematics Anxiety For Middle School Students Using A Combined Intervention Approach Versus Only Using The Cognitive Intervention Approach For Increasing Mathematical Achievement: A Comparative Study, Patricia Anna Garcia

Doctoral Dissertations

Current research has found evidence of effective interventions for mathematics anxiety, both motivational and cognitive interventions can affect learning through instructional design and increased student engagement. Thus, this study investigated whether a combined (cognitive and motivation) intervention approach was more effective than only using a cognitive intervention approach for alleviating mathematics anxiety in middle-school students in order to develop a positive mathematical self-concept. The design used in this study was a comparison pretest-posttest study using the modified Abbreviated Math Anxiety Scale (mAMAS) to measure the participants’ level of mathematics anxiety and the STAR Mathematics diagnostic assessment to measure gradual mathematics …

Conceptualizing Social Mathematical Empowerment: What Is The Curricular Connection?, Alicia C. Gonzales

Doctoral Dissertations

As a result of everchanging goals and visions for mathematics education in the United States, this study builds on an initial theoretical framework of empowerment and further conceptualizes one domain, namely Social Mathematical Empowerment [SME]. I used concept analysis to define processes and outcomes more precisely and identified SME as a multi-layered, dialectic construct. This approach results in two components of action and awareness with various instructional and theoretical approaches. I then applied that conceptualization and created an analytical tool to examine mathematics teaching materials to engage learners in SME. This study adds to the existing knowledge base by providing …

Natural, Experimental, And Educational Explorations Of The Interiors Of Terrestrial Planetary Bodies, Nadine L. Grambling

Doctoral Dissertations

Planetary interiors are enigmatic, inaccessible, and vital to the processes that have formed the rocks we see on the surface of bodies in the inner Solar System today. Based on geophysical explorations of the Moon and Earth, along with information gleaned from rocks at the surface today, there is understanding of the basic structure and processes at depth. Using a combination of natural samples and experimental studies, we attempt to learn more about the physical conditions beneath the surface, and their effect on material properties and tectonics processes in the mantle.

On Earth, mid-ocean ridge processes have long been debated, …

Design Artifacts As Externalized Mental Models Of Children’S Science Concept Development, Christine Mcgrail

Doctoral Dissertations

The Next Generation Science Standards (NGSS) calls for the integration of the practices of science and engineering across all science disciplines beginning in the early elementary grades. Science and engineering education research has determined that engineering design is a productive means for promoting understanding of science concepts. However, design artifacts created during engineering design problem-solving have not received sufficient attention for their potential to embody children’s science understanding. The aim of this study was to examine how conceptual development of the concepts of force and motion was instantiated in design artifacts by early elementary age children engaged in engineering design. …

Science Education To The Rescue? Assessing The Relationship Between Scientific Literacy And Carbon Emissions, Anthony Schmidt

Doctoral Dissertations

Human activities have radically changed the climate, negatively impacting all life on earth. The technical means to address this climate crisis exist, but there are major social and political hurdles that stand in the way. Education has been touted as one possible means for helping to move forward necessary action on climate change. A hybrid model of planned behavior and human capital helps explain how education can affect climate change. The current dissertation sought to assess what relationship may exist between changes in per capita carbon emissions and science education as measured by the Programme for International Student Achievement (PISA). …

Examining Small-Group Discourse Through The Lens Of Students’ Beliefs About Mathematics And The Instructional Triangle, Jennifer Ericson

Doctoral Dissertations

Standards-based mathematics instruction [SBMI], with opportunities to engage in high-quality mathematical discourse about meaningful tasks, leads to increased student achievement. However, not all students participate in mathematical discourse with high-quality. Esmonde & Langer-Osuna (2013) found that students participate in discourse with various degrees of engagement based upon individual beliefs. Boaler (2006b) found that SBMI in a detracked setting improves students’ beliefs about mathematics. The purpose of this descriptive case study was to illustrate the phenomenon of incongruent written curricula commitments across grade bands in a school district by examining small-group discourse and students’ mathematical related beliefs. This study compared students’ …

Recruiting Minoritized Mathematics Preservice Teachers With Retention In Mind, Nicholas Scott Kim

Doctoral Dissertations

The primary purpose of this research is to provide insight into the narratives and experiences of minoritized preservice teachers (PST) interested in teaching mathematics and how those experiences impact recruitment and retention of those minoritized teachers. “Minoritized,” as used here, is defined as one who identifies as a person from a historically underserved community based on race or ethnicity. As a result, this study is positioned to provide researchers, educators, and administrators with much needed direction into how to diversify the teaching force beyond the dominant storyline of the White majority, and why it is important to do so.

Narrative …

Non-Academic Support Math Faculty Members Provide In Developmental Accelerated And Corequisite Support Courses In California Community Colleges, David Vakil '92

Doctoral Dissertations

To guide practitioners of rapidly evolving developmental math reform in community colleges, this study surveyed California community college math faculty who taught accelerated developmental courses or corequisite support courses. The survey was conducted during the early implementation phase of both course types, during spring and fall 2018 terms. This study measured faculty’s self-reported provision of forms of non-academic support, frequency of implementation, and reasons faculty believed the support would help students succeed. The literature review guided grouping non-academic support into five forms: nurturing, helping students’ motivation, providing a growth mindset theory of intelligence, helping provide social integration, and helping to …

Interests Served And Interests Converged: A Mixed-Methods Critical Policy Analysis Of The California Math Placement Act, Chalesea Schuler

Doctoral Dissertations

The California Mathematics Placement Act was created to eliminate bias within math placement and increase advanced math enrollment, particularly for subgroups who have been historically excluded. Using a Critical Race Theory lens, this study compared the stated goals of policy proponents with whose interests are actually served, and whose are not served, by the policy. This study used a mixed-methods research design to conduct a critical policy analysis of the California Math Placement Act. The qualitative portion of this study used archival document analysis to determine the origins of the act and the interests that converged to pass it. The …

Increasing Senior High School Students' Mathematical Problem-Solving Skills Through Improving Their Spatial Visualization Skills By Learning And Practicing Three-Dimensional Dynamic Geometry With Cabri 3d, Nurul Yaqin

Doctoral Dissertations

Problem-solving is one of the standards of mathematics processes developed by the National Council of Teachers of Mathematics. Many research studies indicated that there was a relationship between mathematics achievement and spatial visualization skills. But the research results still didn’t indicate whether or not there was a causal mediation relationship between the achievement of learning-and-practicing three-dimensional geometry and mathematical problem-solving skills mediated by spatial visualization skills. Therefore, it’s still necessary for us to specifically investigate whether or not spatial visualization skills can be a medial factor between the increase of mathematical problem-solving skills and the effects of learning and practicing …

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 …

Promoting Tolerance Through Learning About Human Evolution And Creation Myths, Afsoon Alishahi

Doctoral Dissertations

The role that religion plays in the lives of humans is complex, contradictory, and deeply impactful. According to Allport (1979), religion has a paradoxical function in that it can either combat or contribute to prejudice. A meta-analysis by Hall, Matz, and Wood (2010) found a significant correlation between being deeply religious and having racial prejudice. Similarly, many social scientific studies since 1940 have concluded that religious individuals are more prejudiced than less religious individuals (Hunsberger & Jackson, 2005).

Therefore, the purpose of this study was to examine whether gaining knowledge about human evolution, creation myths, and their relationship to religious …

Female Students’ Academic Engagement And Achievement In Science And Engineering: Exploring The Influence Of Gender Grouping In Small Group Work In Design-Based Learning Contexts In High School Biology, Miancheng Guo

Doctoral Dissertations

In the past 30 years, although much effort has been made to narrow the gender gap in science, technology, engineering and mathematics (STEM), females are still largely underrepresented in some important STEM fields, such as physics and engineering (NSF, 2007). To deal with this situation, people from different sectors have long reached a common understanding: Educators must improve school girls’ interest, participation and engagement in STEM subjects (e.g., Office of Science and Technology Policy, 2013). In the K-12 classroom, small group work has been shown to promote an equitable environment for girls’ learning in science and have a positive impact …

Stem Pipeline For Students With Disabilities: From High School To Intentions To Major In Stem, Joshua Bittinger

Doctoral Dissertations

This dissertation examined the science, technology, engineering, and math (STEM) major declaration intentions of students with disabilities as they graduated high school and entered college. I used data from the High School Longitudinal Study of 2009 (HSLS:09) because data collection began in high school and followed students into college, facilitating research focusing on access. Before investigating major declaration intentions, I critiqued the definition and measurement of disability in the HSLS:09, drawing from survey research methods literature. The two subsequent analyses focused on psychological and structural components, respectively. My focus on psychological components drew from Eccles and colleagues’ (1983) expectancy-value framework. …

The Role Of Prior Knowledge, Situational Interest, And Case Study Pedagogy In The Undergraduate Biology Classroom., Ally Hunter

Doctoral Dissertations

In the undergraduate science classroom, case study pedagogy is method that uses stories with dilemmas and/or questions to convey scientific content. Case study pedagogy shows promise as an active learning pedagogy to meet the demands of 21st century biology education initiatives; however, there is a dearth of information on how students learn with case studies in the undergraduate biology classroom. The purpose of this study was to investigate variables that impact learning with case studies (prior content and contextual knowledge, situational interest, and pedagogical strategies) and the relationships between those variables to further understand how students learn with case studies …

Motivation And Gender Dynamics In High School Science: The Effect Of Gender Composition On Motivation In Small Group Inquiry And Engineering Tasks, Julie Robinson

Doctoral Dissertations

While current research shows that the gender gap in science achievement has disappeared (Miller, Blessing, & Schwartz, 2006), girls continue to show declining levels of STEM (science, technology, engineering, and math) engagement in school. Literature shows that various societal and educational factors impact girls’ STEM motivation disproportionately to boys (Bennett & Hogarth, 2009; Breakwell & Robertson, 2001; Brotman & Moore, 2008; Campbell & Clewell, 1999; Cokadar & Kulce, 2008; Huebner, 2009; Jovanovic & King, 1998; Lee, 1998; Miller, Blessing, & Schwartz, 2006; Osborne, Simon, & Collins, 2003; Solomon, 1997). The onset of this phenomenon occurs in the middle school years …

Multiple Representations Of The Fundamental Theorem Of Calculus As Enacted In The Curriculum, Sense-Making And Gender, Ileana Vasu

Doctoral Dissertations

Multiple representations of the Fundamental Theorem of Calculus (FTC) are deemed essential to creating mathematical habits of mind, but not all classroom instruction includes them. This study articulates the relationship between college students’ experience with multiple representations of the FTC, gained through the enacted curriculum, and their use of multiple representations when problem solving or discussing the FTC. It suggests that students’ use of multiple representations directly relates to their curricular experience, which outweighs a student’s own inclination towards any particular representation. It further suggests that the relationship between classroom experience with a particular representation of the FTC, and its …

Use Of Multimedia Games For Biology Vocabulary Instruction, Ian Murray

Doctoral Dissertations

Vocabulary knowledge is considered fundamental to learning. However, students typically find learning scientific vocabulary quite difficult, and that is especially true for biology vocabulary. Games are well established as effective tools for vocabulary instruction. Multimedia instruction is likewise recognized as aiding vocabulary learning. To date, however, there seems have been little examination of the use of multimedia games in biology vocabulary instruction. This study, therefore, compared the effectiveness of digital multimedia games and traditional instruction in teaching biology vocabulary.

A two-group, quasi-experimental study was carried out over the course of 61 days. Participants were a convenience sample of 10 high …

Evaluation Of The Redesign Of A Stem Gatekeeper Course, General Chemistry I, Incorporating Active-Learning Strategies And Implementation Of A Student-Choice Model, Travis Rae Mcdowell

Doctoral Dissertations

"The first courses freshman university students typically enroll in are the introductory science and math, courses that bridge from and build upon their prior educational experiences. These introductory courses often have large enrollment lectures coupled with supplemental sessions to teach using traditional educational practices, which may operate counter to the attitudes and culture of the students who take them. To address this, the general chemistry faculty through collaboration with a team of educational specialists initiated a redesign of the general chemistry course, which primarily serves first-year undergraduates. The redesign efforts included changes such as reducing lecture time and placing emphasis …

A Methodology To Predict Community College Stem Student Retention And Completion, Jennifer Lynn Snyder

Doctoral Dissertations

"Numerous government reports point to the multifaceted issues facing the country's capacity to increase the number of STEM majors, while also diversifying the workforce. Community colleges are uniquely positioned as integral partners in the higher education ecosystem. These institutions serve as an access point to opportunity for many students, especially underrepresented minorities and women. Community colleges should serve as a major pathway to students pursuing STEM degrees; however student retention and completion rates are dismally low. Therefore, there is a need to predict STEM student success and provide interventions when factors indicate potential failure. This enables educational institutions to better …

Evaluating A Translingual Administration Of The Early Grades Math Assessment (Egma) In The Democratic Republic Of The Congo, Fernanda Gandara

Doctoral Dissertations

Translanguaging is a view around languages that normalizes diglossia without separation: the linguistic resources of the bilinguals are considered one integrated system. Translanguaging is also a language practice of bilinguals, who select features from their entire linguistic repertoire to make sense of the world around them. Translanguaging is widely used by students and teachers in the bilingual classroom, as it allows students to build upon their entire set of resources, enhance learning outcomes, perform identities, and develop their languages even further. However, translanguaging is rarely used in assessments of bilinguals. Assessments of bilinguals, especially large-scale tests, are typically monolingual in …

Cross Case Study Of An Elementary Engineering Task, John Heffernan

Doctoral Dissertations

Designerly play has been identified as a fundamental component of childhood learning (Baynes, 1994; Petroski, 2003). However, as students enter grade one and beyond, the increasing academic focus has resulted in the loss of opportunities for designerly play (Zhao, 2012). At the same time, there are increasing calls to increase the number, skill, and diversity of STEM workers (Brophy, Portsmore, Klein, & Rogers, 2008). The robotics based Elementary Engineering Curriculum (Heffernan, 2013) - used by students in this study - and other similar projects have the potential to increase the STEM pipeline but elementary engineering is not well-understood. Research is …

Supporting Black And Brown Females’ Stem Identity Construction Through Mathematics Teacher Noticing: A Mixed Methods Study, Carolyn Gardner

Doctoral Dissertations

The current study explores the nature of the relationship between a teacher’s experiences and her pedagogical practices that are oriented to support female students of color identity construction in relation to science, technology, engineering and mathematics (STEM) studies and careers. The narratives and class observations of the female mathematics teacher of color who is a STEM career changer were used to identify ways in which the teacher’s lived experiences supported her mathematics teacher noticing and influenced her adaptive teaching practices. Student surveys and individual student focal interviews were analyzed to assess the students’ perceptions of the teacher’s support and their …

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 …

Writing-To-Learn In High-School Chemistry: The Effects Of Using The Science Writing Heuristic To Increase Scientific Literacy, Denae Nurnberg

Doctoral Dissertations

Writing-to-Learn in High-School Chemistry: The Effects of Using the Science Writing Heuristic to Increase Scientific Literacy

The purpose of this study was to investigate the effectiveness of using the Science Writing Heuristic (SWH) as an instructional tool to improve academic achievement and writing in the context of scientific literacy. This quasi-experimental study compared the effects of using the SWH in five laboratory settings over a 16-week span. The SWH was administered to a treatment group (n=63), whereas the comparison group (n=67) received laboratory sessions using a traditional laboratory report format.

There were four classes (n=130) of general chemistry enrolled in …

Development And Validation Of The Statistics Assessment Of Graduate Students, Dammika Lakmal Walpitage

Doctoral Dissertations

This study developed the Statistics Assessment of Graduate Students (SAGS) instrument, and established its preliminary item characteristics, reliability, and validity evidence. Even though there are limited number of assessments available for measuring different aspects of statistical cognition, these previously available assessments have numerous limitations. The SAGS instrument was developed using Rasch modeling approach to create a new measure of statistical research methodology knowledge of graduate students in education and other behavioral and social sciences. Thirty-five multiple-choice questions were written with stems representing applied research situations and response options distinguishing between appropriate use of various statistical tests or procedures. A focus …

Understanding Stem Learning Outcomes Using A Phenomenographic Approach, Cheryl L. Brooks

Doctoral Dissertations

Today’s STEM professionals are called upon to meet the nation’s technical challenges with innovative technologies that push the boundaries of our current understanding and practices. While the total number of STEM graduates may be sufficient for the number of STEM jobs, many lack the specific competencies needed for practice, suggesting that science and engineering graduates may not be adequately prepared for careers in the STEM fields (U.S. Joint Economic Committee, 2012). Using a phenomenographical approach, the researcher interviewed 18 STEM professionals to understand the qualitatively different ways in which they gained the technical and professional competencies needed to be successful …