The United States of America needs STEM trained workers, STEM faculty and STEM professionals to improve its technical and professional workforce in order to maintain leadership in a global economy. However, American students are not opting to remain in a STEM course of study, and this is especially so for women and minorities. Of the students who pursue post-secondary education, the majority of movement away from STEM majors occurs in the first two years. Thus, educators are concerned with investigating factors that may influence students' persistence and success when in a STEM track of learning. To that end, this quasi-experimental mixed-method study was concerned with investigating the effects of participation in the design process on student self-efficacy and content knowledge gains in an undergraduate anatomy and physiology laboratory. Over fifty students participated in a design task that paralleled the topic being studied in a given semester and were given efficacy surveys along with lab practicums. Qualitative efficacy data, quantitative efficacy data and quantitative practicum results were analyzed and triangulated to produce a meta-inference as to the effect of participation in the design project had on student learning. Preliminary results indicate that the design process makes statistically significant impacts on both self-efficacy and content knowledge in the given context. The author follows with a discussion of the impact of design-based learning in the undergraduate biology classroom and implications for further research are considered. / Ph. D.

Significant emphasis is currently placed on STEM education as a vehicle to encourage American youth to enter science, technology, engineering, and math-related professions. Gifted students are a natural resource of future innovators for these fields; however gifted programs are largely overlooked for program support. Since 1973, the Virginia Department of Education has sponsored a unique model of regional magnet programs for gifted and talented students called the Virginia Governor's Schools. These schools provide accelerated and differentiated curricula, often in the STEM subjects. As evaluation is a strong component to achieve more funding to meet the scientific and technological demands of these programs, the researcher explored the evaluation reports of five STEM-focused Virginia Governor's Schools. The purpose of the study was to collect consequential evidence of an untested rubric instrument used for the evaluations. A descriptive analysis of the instrument's criteria ratings, a content analysis of evaluation reports, and a thematic analysis of eight evaluator interviews were conducted. Results were triangulated to reveal that the five Governor's Schools met (n= 80.0%) or exceeded (n= 13.87%) evaluation metric standards, and shared similar strengths and areas of needed improvement. Triangulated evidence supported the argument that the instrument addresses gifted students as independent learners, faculty as education innovators, and promotes STEM-capable citizens through scientific research and civic service. Information collected during the study was intended to assist evaluation designers in determining rubric efficacy and provide recommendations for planned future revisions. / Ph. D.

As widespread as Science, Technology, Engineering, and Math (STEM) initiatives and reforms are today in education, a rudimentary problem with these endeavors is being overlooked. In general, education programs and school districts are failing to ensure that elementary teachers who provide children's early academic experiences have the appropriate knowledge of and proclivity toward STEM subjects. This issue is further compounded by the focus centered on mathematics due to accountability requirements leaving very little emphasis on science, and most often, the exclusion of technology and engineering instruction from the curriculum (Blank, 2012; Cunningham, 2009; Lederman and Lederman, 2013; Lewis, Harshbarger, and Dema, 2014; Walker, 2014). At the elementary level, the lack of science instruction and professional development generates a weakness for both pre- and in-service teachers and prompts elevated concerns about teaching science (Goodrum, Cousins, and Kinnear, 1992; Anderson, 2002). Research (Lewis, 1999/2006; Wells, 2014) suggests that one way to address this weakness is through the technological/engineering designed-based approach within the context of integrative STEM education. The purpose of the study was to gain an understanding of change in science instructional content and practice through professional development that educates elementary teachers to implement Technological/Engineering Design Based Learning (T/E DBL) as part of teaching science. The research design was a multiple case study which adhered to a concurrent mixed method approach (Teddlie, and Tashakkori, 2006; Yin, 2003),with four participants who were recruited because of their availability and their grade level teaching assignment that correlated to an analysis of the 2013 science state accountability test, Standards of Learning (Pyle, 2015). Data collected from surveys were analyzed using descriptive and inferential statistics. These data were corroborated with a sweep instrument and assessment rubric analyses, and interview responses to validate the results. Findings from this study revealed that professional development model used in this study was clearly effective in getting elementary teachers to implement T/E DBL. The participants were better able to integrate T/E DBL when planning and designing instructional units and had an improved understanding of the science concepts they were teaching. / Ed. D.

Science, Technology, Engineering, and Mathematics (STEM) education is spurred by an economic and social need for cross-discipline understanding of complex, worldwide problems, made through intentional connections between two or more STEM subject areas. In order for educators to articulate these connections, research suggests they must have a firm understanding of the individual disciplines through both content and pedagogical approaches. In 2007, as a leader in non-formal STEM education, 4-H made a specific commitment to improve STEM literacy in America's youth by forming the 4-H Science mission mandate, therefore increasing its STEM programming. This qualitative study examined how 4-H educators come to understand STEM and engineering concepts and utilizations, and whether their backgrounds influence their verbalization or expectations of engineering. Narrative themes emerged that help determine how engineering is currently and can continue to be more clearly and consistently articulated and connected within 4-H programming. Themes included 1) a lack of direct connection or understanding of engineering characteristics to 4-H programs, 2) familiarity with and ability to apply engineering characteristics to the Do Reflect Apply model, and 3) the importance of volunteers as STEM and engineering educators within 4-H programming. Strategies for professional development emphasizing engineering understandings, learning outcomes, and broad applications were discovered. Professional development should consider the effects of engineering and STEM self-efficacy, as well as professional identity development. Additionally, it utilize approaches such as the Do Reflect Apply model, and reflect on the learning objectives 4-H educators strive to achieve during STEM programming in conjunction with life-skills. / Master of Science in Life Sciences / In 2007, 4-H made a specific commitment to improve Science, Technology, Engineering, and Mathematics (STEM) literacy in America’s youth by forming the 4-H Science mission mandate. However, research suggests in order for educators to successfully implement STEM programming, they need to understand the content and best teaching practices, which presents a unique obstacle for 4-H educators as many lack formal education in both. By conducting interviews with current 4-H educators in Virginia, this research begins to highlight the importance behind STEM understanding and STEM teaching practices – particularly as they pertain to engineering projects. These interview and data analysis process uncovered common themes including connections between engineering and current 4-H educational approaches, as well as the existing barriers between volunteers as STEM educators and successful programming. In order to improve STEM education within 4-H, professional development strategies focusing on engineering characteristics, outcomes aligning with 4-H goals, and applications to real-world problems should be implemented.

In the United States STEM (Science, Technology, Engineering, and Mathematics) education is increasingly being promoted as a key component of preparing students for the reality of an increasingly technology infused society and workforce. As the population of students classified as English Language Learners (ELLs) continues to grow across the United States the need for STEM educators to be prepared to effectively educate these students is of increasing concern. The task of preparing this group of learners to succeed in a STEM-infused society is a joint effort between specialized linguistic courses in the K-12 education system as well as the STEM educators outside of these specialized courses. As such, focus on creating policy and preparation models for STEM teachers to acquire the necessary skills to effectively serve the ELL population needs to be rooted in targeted analysis of the connections between STEM educators and ELLs. This dissertation is comprised of two exploratory research studies that examine STEM teachers' preparedness to educate ELLs using secondary analysis of the 2007-2008 and 2011-2012 School and Staffing Survey Teacher Questionnaire (SASS TQ) datasets. The first study focuses on national and regional analysis of how STEM teachers' degrees, state-level certification areas, and professional development participation reflect potential indicators of preparedness to educate ELLs. Concurrently, this study examines ELL participation in STEM courses nationally and regionally through the percentage of STEM teachers who had ELLs in their overall service loads of students as well as the average number of ELLs in those service loads. Quantitative analysis showed drastic differences between regions as well as differences in ELL participation and teacher credentialing between the STEM disciplines. The second study utilizes both the 2007-2008 and 2011-2012 SASS TQ datasets to make comparisons in STEM educators credentialing and ELL participation in STEM courses over the four year time span between the datasets. National analysis of ELL participation in STEM courses showed that in all of the STEM disciplines the percentage of teachers who had ELLs in their total service loads of students increased. The growth of ELL participation differed across disciplines and across regions, however, nationally by 2012 over half of all STEM educators reported having ELLs in their service loads of students. Despite the growing participation of ELLs in STEM courses, the rates of STEM teachers' participation in ELL specific professional development activities largely stagnated over the four year span. The findings of these studies provide valuable information to frame discussions of STEM teachers'preparedness to meet the needs of a growing population of ELLs. / PHD

Preparing students to be life-long learners that are career and college ready is a goal of agricultural education. Changing expectations of education have pointed to agriculture educators as potential leaders in the STEM education movement. Literature related to STEM education in agricultural education is lacking in guidance for teachers, administrators, and curriculum developers in integrating academic content related to STEM content areas. A review of STEM education literature coupled with the framework of quantitative reasoning, lead to a conceptualization of a framework for integrative agricultural education. This framework was implemented through a case study to investigate collaborative efforts in curriculum development in agricultural education with a specific focus on integrating mathematics to develop students' quantitative reasoning skills. Teacher characteristics were identified that seemed to support the implementation of integrative agricultural education practices. Teaching and planning strategies were also identified in the case study. Recommendations suggest support of collaboration between agriculture and mathematics teachers would best support curriculum design and aid in the quality of instruction that follows. / Ph. D.

Although originally conceived as an educational intervention for at-risk students, modern career academies have expanded their scope to programs designed to promote critical thinking, problem solving, and analytical skills to be successful in an advanced career path. Through the integration of career and technical education courses and a rigorous, college preparatory academic curriculum, career academies serve as a key piece of a larger strategy for developing a well- prepared STEM workforce. This study focuses on the Virginia Governor's STEM Academies, a state-wide initiative containing programs designed to expand options for the general student population to acquire STEM literacy and other critical skills, knowledge and credentials that will prepare them for high-demand, high-wage, and high-skill careers. Currently, 22 Academies exist serving students across 36 Virginia School Divisions. Using educational administrative data housed within the Virginia Longitudinal Data System, I examined the Virginia Governor's STEM Academies regarding characteristics of student participation and the relationship between Academy participation and high school and postsecondary outcomes. Using multi-level regression modeling, I found that male students, Asian and Hispanic students, and non-economically disadvantage students have a higher rate of Academy participation. After matching students with propensity score matching on demographic and early academic characteristics, I find that Academy participants are more likely to take Algebra II at an earlier grade, enroll in more Career and Technical Education and dual enrollment courses, and declare a STEM major after enrolling at a postsecondary institution. This research provides a valuable new contribution to the study of career academies after such educational programs have undergone a paradigm shift to preparing students for high-demand, high-wage, and high-skill careers. By incorporating propensity score matching and multi-level regression model, I employ a statistically rigorous approach that can serve as important benchmarking of the enrollment and academic outcomes of the Virginia Governor's STEM Academies. / Doctor of Philosophy / Although originally conceived as an educational intervention for at-risk students, modern career academies have expanded their scope to programs designed to promote critical thinking, problem solving, and analytical skills to be successful in an advanced career path. Through the integration of career and technical education courses and a rigorous, college preparatory academic curriculum, career academies serve as a key piece of a larger strategy for developing a well- prepared STEM workforce. This study focuses on the Virginia Governor's STEM Academies, a state-wide initiative containing programs designed to expand options for the general student population to acquire STEM literacy and other critical skills, knowledge and credentials that will prepare them for high-demand, high-wage, and high-skill careers. Currently, 22 Academies exist serving students across 36 Virginia School Divisions. Using educational administrative data housed within the Virginia Longitudinal Data System, I examined the Virginia Governor's STEM Academies regarding characteristics of student participation and the relationship between Academy participation and high school and postsecondary outcomes. Using multi-level regression modeling, I found that male students, Asian and Hispanic students, and non-economically disadvantage students have a higher rate of Academy participation. After matching students with propensity score matching on demographic and early academic characteristics, I find that Academy participants are more likely to take Algebra II at an earlier grade, enroll in more Career and Technical Education and dual enrollment courses, and declare a STEM major after enrolling at a postsecondary institution. This research provides a valuable new contribution to the study of career academies after such educational programs have undergone a paradigm shift to preparing students for high-demand, high-wage, and high-skill careers. By incorporating propensity score matching and multi-level regression model, I employ a statistically rigorous approach that can serve as important benchmarking of the enrollment and academic outcomes of the Virginia Governor's STEM Academies.

<p>This qualitative study was conducted to understand the instructional strategies used by high school integrated STEM (iSTEM) teachers to apply real-world problem solving in their classrooms in the state of Indiana. The problem addressed by this study was the need to understand the instructional strategies employed by iSTEM teachers in their classrooms. Using a basic qualitative approach, data was collected through teacher interviews, classroom observations, and documents. The thematic analysis revealed several themes: (a) there is no single instructional strategy, but teachers adapt their strategies to the context, (b) the importance of preparation using various sources and building on student’s prior knowledge, (c) a focus on asking "why" questions as a priority, (d) the necessity of making group work tangible, (e) the use of modeling as a common strategy, including data collection and analysis, sketching and documentation, (f) the promotion of student independence by being aware and performing tasks independently, (g) the integration of real-world issues to relate learning to student lives, and (h) the challenges posed by time and diversity of student abilities. These findings suggest that iSTEM teachers should be flexible in their approach and emphasize preparation, questioning, modeling, group work, and real-world connections to improve student learning in an integrated STEM approach. The findings contribute to the existing literature on iSTEM teaching and have implications for iSTEM teachers, school administrators, and policymakers. The findings of this study can inform professional development programs for iSTEM teachers and can help school administrators design collaborative and problem-solving learning environments. Lastly, policymakers can use the findings to develop policies that promote the integration of real-world problem-solving into STEM education, thereby contributing to the development of a workforce that is prepared to meet the challenges of the 21st century.</p>

The Federal Government has called for an overhaul of STEM education, saying that we as a nation must increase "opportunities for young Americans to gain strong STEM skills" (Office of Science and Technology Policy, 2013, p.1). Economically, these skills expand beyond those that make good doctors, professors, and engineers; there is a world of jobs going unfilled because our students are graduating without the skills or knowledge that such opportunities exist. To increase the future STEM workforce, we first need to increase student awareness of a variety of STEM careers early on (Tai et al., 2006). Career decisions are being made by students as early as middle school (Tai et al., 2006); and very little if any STEM career exploration is occurring before high school. This lack of early exposure to STEM career options means that students are likely making decisions about career choices without accurate information; choosing a path before knowing about all the options. This research is broken into two manuscripts; the first of which examined the impacts of design-based learning and scientific inquiry curriculum treatments with embedded career content on the career interest of fifth-grade students as compared to traditional classroom methods. It found that there is an upward trend in career interest with the use of these curriculum treatments, but it is not a significant change, likely due to the short time period of the unit and/or small n. The second manuscript examined the effect of a design-based learning curriculum treatment implementation for a single unit on Radford City Schools fifth-grade students' STEM attitudes and interest in STEM careers through a pre/post design. The study showed statistically significant growth in overall STEM attitudes and within the science subtest specifically. Career interest in the general field of science showed a significant increase, while a change of interest in specific career areas was not statistically significant. Collectively, this research serves as a foundation for the effectiveness of having career awareness and career exposure opportunities built into active learning instruction, which does not occur currently. Built on secondary principles, but at a level appropriate for elementary students, using active learning opportunities with embedded career connections has the potential to be an effective solution to students' premature exclusion of STEM-related study and work options identified in the literature. Through preliminary exposure to this unique combination at the elementary level, a stronger foundation can be built for both ability and interest in STEM. / Ph. D. / The Federal Government has called for an overhaul of STEM education, saying that we as a nation must increase “opportunities for young Americans to gain strong STEM skills” (Office of Science and Technology Policy, 2013, p.1). Economically, these skills expand beyond those that make good doctors, professors, and engineers; there is a world of jobs going unfilled because our students are graduating without the skills or knowledge that such opportunities exist. To increase the future STEM workforce, we first need to increase student awareness of a variety of STEM careers early on (Tai et al., 2006). Career decisions are being made by students as early as middle school (Tai et al., 2006); and very little if any STEM career exploration is occurring before high school. This lack of early exposure to STEM career options means that students are likely making decisions about career choices without accurate information; choosing a path before knowing about all the options. This research is broken into two manuscripts; the first of which examined the impacts of design-based learning and scientific inquiry curriculum treatments with embedded career content on the career interest of fifth-grade students as compared to traditional classroom methods. It found that there is an upward trend in career interest with the use of these curriculum treatments, but it is not a significant change, likely due to the short time period of the unit and/or small n. The second manuscript examined the effect of a design-based learning curriculum treatment implementation for a single unit on Radford City Schools fifth-grade students’ STEM attitudes and interest in STEM careers through a pre/post design. The study showed statistically significant growth in overall STEM attitudes and within the science subtest specifically. Career interest in the general field of science showed a significant increase, while a change of interest in specific career areas was not statistically significant. Collectively, this research serves as a foundation for the effectiveness of having career awareness and career exposure opportunities built into active learning instruction, which does not occur currently. Built on secondary principles, but at a level appropriate for elementary students, using active learning opportunities with embedded career connections has the potential to be an effective solution to students’ premature exclusion of STEM-related study and work options identified in the literature. Through preliminary exposure to this unique combination at the elementary level, a stronger foundation can be built for both ability and interest in STEM.

Expository instructions, worked examples, and subgoal labels have all been shown to positively impact student learning and performance in computer science education. This study examined whether learning and problem solving performance differed based on the sequence of the instructional materials (expository and worked examples) and the presence of subgoal labels within the instructional materials. Participants were 138 undergraduate college students, age 17-25, who watched two instructional videos on creating an application in the App Inventor programming language before completing several learning assessments. A significant interaction showed that when learners were presented with the worked example followed by the expository instructions containing subgoal labels, the learner was better at outlining the procedure for creating an application. These manipulations did not affect cognitive load, novel problem solving performance, explanations of solutions, or the amount of time spent on instructions and completing the assessments. These results suggest that the order instructional materials are presented have has little impact on problem solving, although some benefit can be gained from presenting the worked example before the expository instructions when subgoal labels are included. This suggests the order the instructions are presented to learners does not impact learning. Previous studies demonstrating an effect of subgoal labels used text instructions as opposed to the video instructions used in the present study. Future research should investigate how these manipulations differ for text instructions and video instructions.