<p> Persistence and retention of college students is a great concern in American higher education. The dropout rate is even more apparent among first-generation college students, as well as those majoring in science, technology, engineering, and math (STEM). More students earning STEM degrees are needed to fill the many jobs that require the skills obtained while in college. More importantly, those students who are associated with a low-socioeconomic background may use a degree to overcome poverty. Although many studies have been conducted to determine the characteristics associated with student attrition among first-generation students or STEM majors, very little information exists in terms of persistence and retention among the combined groups. The current qualitative study identified some of the characteristics associated with persistence and retention among first-generation college students who are also STEM majors. Participants were juniors or seniors enrolled at a regional 4-year institution. Face-to-face interviews were conducted to allow participants to share their personal experiences as first-generation STEM majors who continue to persist and be retained by their institution. </p><p> Tinto&rsquo;s Theory of Individual Departure (1987) was used as a framework for the investigation. This theory emphasizes personal and academic background, personal goals, disconnecting from one&rsquo;s own culture, and institutional integration as predictors of persistence. The findings of the investigation revealed that persisting first-generation STEM majors are often connected to family, but have been able to separate that connection with that of the institution. They also are goal-driven and highly motivated and have had varied pre-college academic experiences. These students are academically integrated and socially integrated in some ways, but less than their non-first-generation counterparts. They are overcoming obstacles that students from other backgrounds may not experience. They receive support from their families and institution, but have diverse academic backgrounds. The findings show that a culmination of many characteristics have enabled the participants to persist and be retained by their institution.</p><p>

<p> Course-based undergraduate research experiences (CUREs) provide authentic research benefits to an entire laboratory course population. CURE experiences are proposed to enhance research skills, critical thinking, productivity, and retention in science. CURE curriculum developers face numerous obstacles, such as the logistics and time commitment involved in bringing a CURE to larger student populations. In addition, an ideal CURE topic requires affordable resources, lab techniques that can be quickly mastered, time for multiple iterations within one semester, and the opportunity to generate new data. This study identifies some of the CURE activities that lead to proposed participant outcomes. Introductory Biology I CURE lab students at Southern Illinois University Edwardsville completed research related to the process of converting storage lipids in microalgae into biodiesel. Data collected from CURE and traditional lab student participants indicate increased CURE student reports of project ownership, scientific self-efficacy, identification as a scientist, and sense of belonging to a science community. Study limitations and unanticipated benefits are discussed.</p><p>

<p>This mixed-methods case study examined two out-of-school (OST) Science, Technology, Engineering and Math (STEM) programs at a science-oriented high school on students? Self-Efficacy. Because STEM is a key for future innovation and economic growth, Americans have been developing a variety of approaches to increase student interest in science within the school curriculum and in OST programs. Nationwide, many OST programs are offered for students but few have engaged in an in-depth assessment. This study included an assessment of two different types of OST programs and direct observations by the researcher. This study involved two advisors (one male, one female), 111 students, and their parents during 2016. Student participants completed two standardized surveys, one to determine their Science Self-Efficacy and another to assess their engagement in science during their OST programs. Parents described their parental involvement and their child?s interest in the OST program(s). The OST program advisors participated in lengthy interviews. Additionally, the advisors rated their perceived interest level of the enrolled students and recorded attendance data. Bandura?s Social Cognitive Theory (1997a) provided the theoretical framework. This theory describes the multidirectional influence of behavioral factors, personal factors, and environmental factors have on a student?s Self-Efficacy. Compiled data from the teachers, students, and parents were used to determine the relationship of selected variables on Science Self-Efficacy of students. A correlational analysis revealed that students who participated in these OST programs possessed a high Mindset for the Enjoyment of science and that teacher ratings were also positively correlated to Mindset and Enjoyment of Science. Descriptive analyses showed that (a) girls who chose to participate in these OST programs possessed higher school grades in their in-school coursework than boys, (b) that parents of girls participated in more parental activities, and (c) the teachers rated student?s interest in the science OST programs as high. Student comments on the survey and the qualitative analysis by trained coders revealed that success of the program was related to the collaborative and hands-on activities/projects of their OST program. In addition, students felt more involved in projects during after-school and weekend activities than in OST lunch break programs.

<p> Modeling is an important scientific practice through which scientists generate, evaluate, and revise scientific knowledge, and it can be translated into science classrooms as a means for engaging students in authentic scientific practice. Much of the research investigating modeling in classrooms focuses on student learning, leaving a gap in understanding how teachers enact this important practice. This dissertation draws on data collected through a model-based curricular project to uncover instructional moves teachers made to enact modeling, to describe factors influencing enactment, and to discuss a framework for designing and enacting modeling lessons. </p><p> I framed my analysis and interpretation of data within the varying perceptions of modeling found in the science studies and science education literature. Largely, modeling is described to varying degrees as a means to engage students in sense-making or as a means to deliver content to students. This frame revealed how the instructional moves teachers used to enact modeling may have influenced its portrayal as a reasoning practice. I found that teachers&rsquo; responses to their students&rsquo; ideas or questions may have important consequences for students&rsquo; engagement in modeling, and thus, sense-making. </p><p> To investigate factors influencing the portrayal of modeling, I analyzed teacher interviews and writings for what they perceived affected instruction. My findings illustrate alignments and misalignments between what teachers perceive modeling to be and what they do through instruction. In particular, teachers valued providing their students with time to collaborate and to share their ideas, but when time was perceived as a constraint, instruction shifted towards delivering content. Additionally, teachers&rsquo; perceptions of students&rsquo; capacity to engage in modeling is also related to if and how they provided opportunities for students to make sense of phenomena. </p><p> The dissertation closes with a discussion of a framework for designing and enacting lessons for engaging students in modeling. I draw on examples from this study to provide context for how the framework can support teachers in engaging students in modeling. Altogether, this dissertation describes how teachers facilitate modeling and why varying enactments may be observed, filling a gap in researchers&rsquo; understanding of how teachers enact modeling in science classrooms.</p><p>

<p> This study accessed the relationship between race, socioeconomic status, age and the race implicit bias held by middle and high school science teachers in Mobile and Baldwin County Public School Systems. Seventy-nine participants were administered the race Implicit Association Test (race IAT), created by Greenwald, A. G., Nosek, B. A., &amp; Banaji, M. R., (2003) and a demographic survey. Quantitative analysis using analysis of variances, ANOVA and t-tests were used in this study. An ANOVA was performed comparing the race IAT scores of African American science teachers and their Caucasian counterparts. A statically significant difference was found (<i>F</i> = .4.56, <i>p</i> = .01). An ANOVA was also performed using the race IAT scores comparing the age of the participants; the analysis yielded no statistical difference based on age. A t-test was performed comparing the race IAT scores of African American teachers who taught at either Title I or non-Title I schools; no statistical difference was found between groups (<i>t</i> = -17.985, <i> p</i> &lt; .001). A t-test was also performed comparing the race IAT scores of Caucasian teachers who taught at either Title I or non-Title I schools; a statistically significant difference was found between groups (<i> t</i> = 2.44, <i>p</i> > .001). This research examines the implications of the achievement gap among African American and Caucasian students in science.</p><p>

This study was designed to: (a) describe the degree to which introductory science programs at two colleges engaged students in the process of scientific inquiry, and (b) describe changes in students' maturity with regard to epistemology, methods of justifying decisions, and agency in science. Course descriptions drew from classroom observations, interviews with faculty about their goals and methods, and interviews with students about their experiences in the courses. Student development was analyzed from pre- and post-semester interviews, pre-, post-semester Likert-scale surveys on students' attitudes and beliefs about science, and post-semester Likert-scale student self-assessments. Both the inquiry and traditional programs allowed opportunities for students to be engaged in answering ill-structured questions. Overall, the inquiry-based courses had more intensive engagement of students in the processes scientists use in authentic research. Students in inquiry-based courses made significantly greater gains in epistemology and methods of justifying decisions as measured by coding interviews and performing t-tests on survey items. What is more, students in inquiry courses reported producing work of their own design. Students in both programs, however, were more confident of their abilities to participate in science after one semester in college. Courses whose goals were primarily content related taught students content and studenting skills; courses whose goals were explicitly process related taught students about the nature and methods of science. The results indicate that if college students are to better understand the nature of scientific knowledge and be better able to justify decisions about complex scientific issues, they should be engaged in more inquiry-based course work.

The Linguistic Interdependence Hypothesis as developed by Cummins (1978) argues that certain first language (L1) knowledge can be positively transferred during the process of second language (L2) acquisition. The L1 linguistic knowledge and skills that a child possesses can be extremely instrumental to the development of corresponding abilities in the L2. An integral component of these facilitative aspects of language influence is that the L1 be sufficiently developed prior to the extensive exposure to the L2 as would be found, for example, in an educational environment. An additional theoretical framework that has motivated this study incorporates principles of Universal Grammar, namely, that there are innate properties of language shared by the human species, and that language acquisition is the result of the interaction between these biologically determined aspects of language with the learner's linguistic environment. The principal goal of this dissertation is to examine children's knowledge of one area of Yucatec Maya L1 syntax, specifically, the word order of simple transitive sentences. By means of an experiment conducted with 28 Mayan children of 4 and 5 years of age, data were gathered and analyzed. Overall, the findings suggest that the subjects of the study are still in the process of acquiring the syntactic structure under investigation, that their L1 is still developing. Very few of the subjects demonstrated mastery of the structure under investigation. With regards to pedagogical concerns within the context of minority language education, the potentiality for these findings to enhance or inhibit the subsequent acquisition of Spanish as an L2 is examined.

The purpose of this study was to examine elementary students' perspectives of a constructivist approach to enhance their knowledge about stress. Participants were fifth grade students in an elementary school in the northeast. Data collection included a pretest-posttest, teacher reflective journal and student interviews. A multiple choice pre-test was administered to students to obtain information about students' knowledge of stress. The pre-test was followed by a four day unit that focused on the concept of stress employing a constructivist approach. The four day unit was monitored in two ways. First, a daily reflective journal was recorded by the teacher about each lesson. Second, students were interviewed at the end of the unit regarding their perceptions of learning through a constructivist approach. A post-test was administered to evaluate students' knowledge. Data analysis for the pre-test consisted of descriptive statistics. The teaching reflective journal and students' interviews were analyzed using constant-comparison. An overview of the results of the study indicates that students reported increased self awareness, appreciation, and understanding of the feelings of others, and enhanced appreciation of human relations from the unit. Other findings indicate that the females scored higher on the pre and post test than the males. Both the individual groups of males and females improved as a result of the unit. The implications of this study may provide educators with insights into the possible effectiveness of a constructivist approach to teaching various health concepts.

Thesis (M.Ed.)--University of Hong Kong, 1988. / Includes bibliographical references (leaf 136-140). Also available in print.

<p> Earlier studies concluded that technology&rsquo;s strength is in supporting student learning rather than as an instrument for content delivery (Angeli &amp; Valanides, 2014). Current research espouses the merits of the Technological Pedagogical Content Knowledge (TPACK) framework as a guide for educators&rsquo; reflections about technology integration within the context of content and instructional practice. Grounded by two theoretical frameworks, TPACK (Mishra &amp; Koehler, 2006; 2008) and Rogers&rsquo; (1983, 1995) theory of diffusion of innovation, the purpose of this mixed-methods research was two-fold: to explore the perceived competencies of tertiary science faculty at higher education institutions with respect to their integration of technology within the constructs of pedagogical practice and content learning and to analyze whether these perceived competencies may serve as predictive factors for technology adoption level. The literature review included past research that served as models for the Sci-TPACK instrument. Twenty-nine professors of tertiary science courses participated in an online Likert survey, and four professors provided in-depth interviews on their TPACK practices. Quantitative analysis of data consisted of descriptive and reliability statistics, calculations of means for each of the seven scales or domains of TPACK, and regression analysis. Open-ended questions on the Likert survey and individual interviews provided recurrent themes of the qualitative data. Final results revealed that the participants integrate technology into pedagogy and content through a myriad of TPACK practices. Regression analysis supported perceived TPACK competencies as predictive factors for technology adoption level. </p>