The Mississippi State University leaderSTATE STEM program provides a variety of experiences for Junior Reserve Officers Training Corps (JROTC) high school cadets across three states: Mississippi, Alabama and Louisiana, the majority from underrepresented demographic populations. LeaderSTATE STEM offers 5-day residential summer camps (N=6) for over 300 students annually. The camps utilize a variety of geosciences STEM activities to increase students' awareness of science and opportunities in geoscience careers. To evaluate the effectiveness of student attitudes towards science, the Test of Science Related Attitudes (TOSRA) instrument was used to ascertain changes in attitudes about science and society. Paired pre-post TOSRA survey results from 2014-2017 camp cycles (N= 1141 students) were analyzed for race, gender, and school correlations. Chi square analysis revealed only a scattered statistical improvement throughout the data (p = 0.05). More research is needed to determine whether the 5-day experience is too limited to result in high school students' attitudinal changes towards science, or whether the TOSRA instrument provides an appropriate assessment for the leaderSTATE STEM camps. A secondary assessment instrument was employed pre- and post-camp to ascertain the abilities of the students in their interpretation of graphically displayed data. That instrument assessed changes in the students' abilities in understanding basic data terminology and interpretation of data shown on graphs. Assessment was performed with a pre-camp - post-camp survey and analysis of change determined with a paired t-test with Cohen's d to determine effect size. A significant p value below 0.05 was determined for only one of six camps in 2016, and for three of six camps in 2017. In both years, Cohen's d effect size was small for two of six camps annually, and medium for all other camps. A follow-on weather data project was developed for, and implemented with, the students in the JROTC programs in the seven schools in the Jackson, Mississippi school district. That month-long project was an extension of topics introduced in the leaderSTATE summer camp program. Two schools performed well in both years of the project, two schools performed in the mid-range, and three schools underperformed in both years of the project.

<p>This study investigated high-achieving and non-high-achieving students’ persistence in STEM fields using nationally representative data from the High School Longitudinal Study of 2009 for the years 2009, 2012, 2013, 2013-2014, and 2016. The results indicated that approximately 70% of high-achieving and non-high-achieving students continued their initial STEM degrees within 3 years of college enrollment. The study revealed that the most important predictors of STEM persistence were: math proficiency level, school belonging, school engagement, school motivation, school problems, science self-efficacy, credits earned in computer sciences, GPA in STEM courses, credits earned in STEM courses, and credits earned in Advanced Placement/International Baccalaureate (AP/IB) courses. Based on the results, math proficiency was the most important variable in the study for both high-achieving and non-high-achieving students. Even though credits earned in AP/IB combined were among the most important variables, they were two times more important for high-achieving students (6.86% vs. 3.37%). Regarding demographic information related variables, socioeconomic status was the most important variable among gender, ethnicity, and urbanicity in models predicting STEM persistence and had higher importance for non-high-achieving students. Furthermore, Hispanic students' proportion of persistence differed from other underrepresented populations’ persistence. Non-high-achieving Hispanic students had the highest persistence rate, similar to well-represented populations (i.e., White, Asian). Machine learning methods used in the study including random forest and artificial neural network provided good accuracy for both achievement groups. Random forest accuracy was over 82% with the Synthetic Minority Over-Sampling Technique (SMOTE) dataset, while artificial neural network accuracy was over 92%.</p>

Across the United States, Human Anatomy and Physiology (HA&P) courses typically have some of the highest withdrawal and failure rates on college campuses. These high enrollment course typically serve as gate-keepers for those individuals with aspirations of entering the medical field. In light of the growing national shortage of healthcare professionals, there is a pressing need to improve the state of HA&P education at a national scale. The goal of this dissertation is to understand why undergraduate students struggle to succeed in HA&P courses. I leveraged multiple frameworks from biology education research, physics education research, and cognitive psychology to understand the source of student difficulty in HA&P. I used a mixed-methods approach to unpack how students reason about the complex phenomena covered in HA&P classes. The data presented here suggest student difficulties in HA&P are not the product of a culmination of individual conceptual difficulties. Rather, this work suggests students have difficulty reasoning with the many complex systems that are at the heart of HA&P curriculum. Students appear to frame these complex systems in a manner that activates reasoning strategies that are often in conflict with course goals. The findings from this work advocate for a dynamic view of student cognition that recognizes the implications of context features on student reasoning of complex systems.

<p>This thesis investigates an online STEM camp called Techie Times and observes its ability to engage rural and urban students in Indiana after the initial COVID-19 outbreak. Students from both locales are found to engage with the camp but only from a few counties across Indiana. Techie Times observed high skills and performance engagement and moderate participation and emotional engagement. The guardians of students appreciated the online camp’s structure, ease of access, and hands-on activities, but thought that the students needed more opportunities to interact with each other and present ideas.</p>

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The proposed project, sCool, is an adaptive game-based learning experience designed for STEM education. In this work, we present a new iteration of sCool in efforts to further examine contributing factors of engagement, usability, and comprehension. The newly developed game experience for acquiring object-oriented programming skills is divided into two parts: concept learning and practical challenge. The concept learning part teaches students theoretical lessons of programming through fun gameplay. The practical challenge part allows students to practice programming by completing tasks. This project presents several new game types for both the concept learning and practical challenge parts. The development of these game types spreads across two phases. The first phase introduces two new game types and focuses on extending sCool to support learning object-oriented programming and improve student’s learning comprehension. The second phase builds off of the first phase, introducing another new game type to improve the object-oriented programming learning experience and the game’s overall usability and engagement. During the first phase, three experiments were conducted in a classroom setting with a computer science teacher. Conducting a study involving a total of 39 school students and three teachers, we are able to successfully display an enhanced understanding of different programming concepts. During the second phase, a single experiment was held remotely among a wide group of people, and the participants were self-guided by an instruction document and the sCool application. Conducting a study with 25 participants, we are able to show a significant improvement in the game’s usability and engagement. For future works, further evaluations in-classroom and over a longer course will be useful in assessing the new game type’s effectiveness in teaching object oriented programming. Furthermore, the game should be expanded to support learning more complex concepts in object oriented programming.

In order for the United States to regain its global standing in science and engineering, educational and governmental organizations have started to re-emphasize science, technology, engineering, and math content in k-12 classrooms.While some preliminary research has been conducted on student and teacher perceptions related to engineering, there has been little research conducted related to teachers beliefs about the importance of engineering content in their classrooms and relatively few studies have investigated elementary teachers teaching engineering self-efficacy. Current studies have investigated the impact of professional development on teachers teaching engineering self-efficacy but these studies were conducted with limited sample sizes, for relatively short professional development timeframes, with a restricted sample and these studies did not include the implementation component of professional development. Research is needed to not only determine elementary teachers beliefs about the importance of engineering content in their classrooms, but to also investigate if these teachers levels of confidence (teaching engineering self-efficacy) can be increased by exposure to STEM-related professional development and the implementation of engineering activities in their classrooms. The research question in this study was to determine if scored responses from a pre-survey taken by teachers participating in an engineering-related professional development would differ from scored responses on two subsequent post-surveys following the professional development and following implementation on the teachers beliefs about the importance of teaching engineering content at the elementary level and the teachers confidence in the ability to teach engineering concepts at the elementary school level.While the teachers in this study generally had positive beliefs about the importance of teaching engineering at the elementary level, an investigation of the individual nine beliefs items from the survey indicated that they are less likely to consider engineering part of the basics and that it should be taught more frequently. One of the major conclusions from this study was that teachers teaching engineering self-efficacy can be significantly strengthened through participation in a week-long professional development series. Furthermore, while not statistically significant, the implementation of these activities into their classroom can also help improve teachers confidence in their ability to teach engineering-related activities.

No description available.

STEM (Science, Technology, Engineering and Mathematics) education for youth can lead to the development of skills to design technologies, innovate tools, optimize work processes, and solve problems to improve society. The public high schools in Senegal are reported to have a low enrollment of students in STEM-related subjects. Youth are taught to memorize theories, with limited opportunities for hands-on STEM activities. However, there are other opportunities for Senegalese youth to engage in STEM education outside the formal school system. This research used case studies to explore the experiences of Senegalese youth learners and educators engaged in hands-on STEM education within non-formal learning settings in Dakar, Senegal. The first case involved six youth and six educators from wood carpentry and metal joinery apprenticeships. The second case involved seven youth and five educators from Go4STEAM, an all-girls out-of-school STEM program. The Ecological Systems Theory was used as a theoretical framework to situate the youth and educators in their learning context and consider ways in which their self and environment influences their STEM learning and teaching experience. An asset-based analytical approach was used in both cases to identify and describe positive influences and educational practices related to learning STEM. Results of the study indicated that educators in the apprenticeship setting display elements of cultural-based education as they not only teach the youth learners engineering through guided instructions, but also help raise them into adulthood. The youth learners in this setting have dropped out of school, thus recommendations for this learning setting include leveraging apps, mobile training, and competitions to promote engineering education as well as ensuring a strong foundation in reading, writing, and math. The Go4STEAM learning setting was found to offer activities that were interesting and responsive for their youth learners, and their learning environment emphasized peer collaboration. Recommendations for this learning setting include encouraging youth to take leadership of their learning whilst positioning the educators as co-learners, and offering the youth opportunities to engage in STEM with various partners and settings around the community. By recognizing and valuing the strengths of non-formal learning settings, this study identifies opportunities to strengthen the Senegalese STEM Learning Ecosystem. The additional support can lead to opportunities for Senegalese youth to become innovators and problem solvers that use their skills for educational and career advancement, upward economic mobility, and improved community development. / Doctor of Philosophy / STEM (Science, Technology, Engineering and Mathematics) Education can be beneficial for the youth because it gives them useful skills for their jobs and their community. There are many factors that influence how youth learn STEM, and youth are able to learn in school and out of school. In Senegal, there are a low number of students enrolled in STEM-related subjects in high school, and the schools do not offer hands-on STEM activities. This research uses case studies to investigate STEM education for youth in non-formal, out-of-school settings, in Dakar, Senegal. Six youth and six educators from the wood carpentry and metal joinery apprenticeships, and seven youth and five educators from the Go4STEAM all-girls program, participated in this study. For each case, the Ecological Systems Theory was used to help consider the various influences that may directly or indirectly impact the youth's STEM education. An asset-based approach was used to identify positive influences and educational practices from the two cases. The study determined that the educators in apprenticeships use cultural norms and values to teach the youth learners engineering and raise them to become adults. The learners do not go to school so they can potentially benefit from apps, mobile training, and competitions that facilitate learning engineering, and the basics of reading, writing and math. At Go4STEM, the study determined that the learning environment was fun for the youth and encourages teamwork. The learners at Go4STEAM may benefit from deciding what STEM topics they want explore and the educators support as co-learners. Also, the educators can help facilitate STEM activities that engage community resources. This study identifies the strengths of non-formal, out-of-school-learning, and identifies opportunities to improve the Senegalese STEM Learning Ecosystem. With the additional support, Senegalese youth can become innovators and problem solvers that use their skills to benefit themselves, their families, and their communities.

Computer Science (CS) is among the fastest-growing fields. To fill the abundance of positions in Computer Science, early learning experiences should be implemented to promote interest in the field. This research aims to observe the impact of a design-based computer science treatment on 5th-grade students' interest in computer science careers. The treatment consisted of nine one-hour lessons in which the researcher introduced computer science content to students. At the end of the treatment, participants developed an application to study for a state-wide science assessment. To measure a change in students' career interests following the treatment, an adapted version of the STEM Career Interest Survey (STEM-CIS), grounded by Social Cognitive Career Theory (SCCT), was implemented using a pre-survey-post-survey design. Qualitative data was collected using focus groups to explain quantitative findings further. The samples' post-survey (39.62) mean was greater than the pre-survey mean (37.17), but the paired t-test was just above the statical significance level of 0.05, t(28)= -2.04, p =.051. There was a statistically significant increase for the survey items that align with the SCCT aspects Interest (t(30)= -2.30, p =.028) and Contextual Support (t(30)= -2.25, p =.032). The researcher identified several themes related to a positive perception toward the treatment and computer science and general during qualitative data analysis. These findings indicate a design-based computer science treatment can increase 5th-grade students' interest in computer science careers. / Doctor of Philosophy / Learning experiences influence an individual's career development. This dissertation observes the impact of a design-based computer science project in a 5th-grade classroom. The researcher implemented a pre-survey-post-survey design to measure change following the treatment. The researcher calculated the difference between survey means and ran a matched paired t-test to determine the statistical significance. The results of the paired t-test were not statistically significant. Still, the survey items that aligned with interest and contextual support had a statistically significant increase following the treatment. Additionally, the researcher conducted focus groups to collect qualitative data to explain quantitative findings further. Content analysis of the qualitative data revealed participants had a positive perception of the treatment and computer science in general. These results imply that a design-based computer science treatment can increase 5th-grade students' interest in computer science careers.