Global ETD Search

41	Allowing Students to Have VOICES (Voluntary Options in Chemical Education Schedules) in General Chemistry I Ford, Robyn Lynn 12 1900 (has links) The purpose of this investigation (a quasi-experimental design called a non-equivalent design group (NEDG)) was to determine if allowing students in a science majors general Chemistry I course the choice in establishing the due dates that their homework was due to the instructor would improve course averages. This study covered two semesters with a total of 288 students participating with n = 158 in the fall and n = 130 in the spring. The students self-selected the homework group, VOICES, that best fit his/her needs which included (1) the instructor's homework schedule, (2) a student-customized schedule or a schedule that followed the exam schedule, or (3) all homework due by the last class day prior to the final exam. Online homework was assigned and graded with individual assignment and homework average grades collected and analyzed. No statistically significant differences were found among the VOICES groups with respect to final course average. Other results of this study replicated findings in the literature; namely, that there is a higher correlation between mathematics skills and course success. Course averages of students who had completed Calculus I or higher were statistically significantly higher than students with less completed mathematics coursework in all VOICES groups. Also, the percentage of successful students in the on-sequence semester (fall) was higher than the percentage of students in the off-sequence semester (spring). No differences were seen in any VOICES group's student demographics or high school chemistry preparation. Choice Theory, Unified Learning Model, First-semester General chemistry, Student persistence, Online homework, Numerical automaticity Chemistry -- Study and teaching (Higher) Homework. Academic achievement.
42	Undergraduate Students' Understanding and Interpretation of Carbohydrates and Glycosidic Bonds Jennifer Garcia (16510035) 10 July 2023 (has links) <p>For the projects titled Undergraduate Students’ Interpretation of Fischer and Haworth Carbohydrate Projections and Undergraduate Students' Interpretation of Glycosidic Bonds – there is a prevalent issue in biochemistry education in which students display fragmented knowledge of the biochemical concepts learned when asked to illustrate their understandings (via drawings, descriptions, analysis, etc.). In science education, educators have traditionally used illustrations to support students’ development of conceptual understanding. However, interpreting a representation is dependent on prior knowledge, ability to decode visual information, and the nature of the representation itself. With a prevalence of studies conducted on visualizations, there is little research with a focus on the students’ interpretation and understanding of carbohydrates and/or glycosidic bonds. The aim of these projects focuses on how students interpret representations of carbohydrates and glycosidic bonds. This study offers a description of undergraduate students’ understanding and interpretation using semi-structured interviews through Phenomenography, Grounded Theory and the Resources Frameworks. The data suggests that students have different combinations of (low or high) accuracy and productivity for interpreting and illustrating carbohydrates and glycosidic bonds, among other findings to be highlighted in their respective chapters. More effective teaching strategies can be designed to assist students in developing expertise in proper illustrations and guide their thought process in composing proper explanations in relation to and/or presence of illustrations.</p> <p><br></p> <p>For the project titled Impact of the Pandemic on Student Readiness: Laboratories, Preparedness, and Support – it was based upon research by Meaders et. al (2021) published in the International Journal of STEM Education. Messaging during the first day of class is highly important in establishing positive student learning environments. Further, this research suggests that students are detecting the messages that are communicated. Thus, attention should be given to prioritizing what information and messages are most important for faculty to voice. There is little doubt that the pandemic has had a significant impact on students across the K-16 spectrum. In particular, for undergraduate chemistry instructors’, data on the number of laboratories students completed in high school and in what mode would be important information in considering what modifications could be implemented in the laboratory curriculum and in messaging about the laboratory activities – additionally on how prepared students feel to succeed at college work, how the pandemic has impacted their preparedness for learning, and what we can do to support student learning in chemistry can shape messaging on the first day and for subsequent activities in the course. An initial course survey that sought to highlight these student experiences and perspectives will be discussed along with the impact on course messaging and structure. </p> <p><br></p> Glycobiology Higher education Education assessment and evaluation Learning sciences Other education not elsewhere classified Public health not elsewhere classified Carbohydrates Glycosidic bonds COVID-19 glycoscience Glycoscience Education Higher Education COVID-19 Pandemic Laboratory Visualizations Representations representations in learning Fischer Haworth Fischer projection formulas Fischer projections Haworth projections Glucose Fructose Alpha bond Beta bond Sugar molecules biochemistry education Biochemistry general chemistry laboratory general chemistry General chemistry education curriculum distance learning students distance learning laboratories distance learning technologies Self instruction student centered learning Student centered teaching representational competence representational competencies
43	Characterizing Multiple-Choice Assessment Practices in Undergraduate General Chemistry Jared B Breakall (8080967) 04 December 2019 (has links) <p>Assessment of student learning is ubiquitous in higher education chemistry courses because it is the mechanism by which instructors can assign grades, alter teaching practice, and help their students to succeed. One type of assessment that is popular in general chemistry courses, yet difficult to create effectively, is the multiple-choice assessment. Despite its popularity, little is known about the extent that multiple-choice general chemistry exams adhere to accepted design practices or the processes that general chemistry instructors engage in while creating these assessments. Further understanding of multiple-choice assessment quality and the design practices of general chemistry instructors could inform efforts to improve the quality of multiple-choice assessment practice in the future. This work attempted to characterize multiple-choice assessment practices in undergraduate general chemistry classrooms by, 1) conducting a phenomenographic study of general chemistry instructor’s assessment practices and 2) designing an instrument that can detect violations of item writing guidelines in multiple-choice chemistry exams. </p> <p>The phenomenographic study of general chemistry instructors’ assessment practices included 13 instructors from the United States who participated in a three-phase interview. They were asked to describe how they create multiple-choice assessments, to evaluate six multiple-choice exam items, and to create two multiple-choice exam items using a think-aloud protocol. It was found that the participating instructors considered many appropriate assessment design practices yet did not utilize, or were not familiar with, all the appropriate assessment design practices available to them. </p> <p>Additionally, an instrument was developed that can be used to detect violations of item writing guidelines in multiple-choice exams. The instrument, known as the Item Writing Flaws Evaluation Instrument (IWFEI) was shown to be reliable between users of the instrument. Once developed, the IWFEI was used to analyze 1,019 general chemistry exam items. This instrument provides a tool for researchers to use to study item writing guideline adherence, as well as, a tool for instructors to use to evaluate their own multiple-choice exams. The use of the IWFEI is hoped to improve multiple-choice item writing practice and quality.</p> <p>The results of this work provide insight into the multiple-choice assessment design practices of general chemistry instructors and an instrument that can be used to evaluate multiple-choice exams for item writing guideline adherence. Conclusions, recommendations for professional development, and recommendations for future research are discussed.</p> Education multiple-choice testing multiple-choice Multiple-choice question General Chemistry Educational assessment assessment validity assessment design assessment literacy Qualitative Investigation Chemistry Education Research Chemistry Education chemistry teaching faculty
44	<b>Integration of Ethnochemistry in a General Chemistry Course</b> Ilayda Kelley (18390249) 17 April 2024 (has links) <p dir="ltr">Student attitudes towards chemistry are a contributing factor to their success in chemistry courses and retention in STEMM in higher education. In the last decade, STEMM attrition rates have been an area of concern in the United States. Research in K12 classrooms has demonstrated that culturally relevant pedagogies (CRP) can improve student learning and attitudes toward STEMM. CRP consists of instructional practices and lessons that connect with students’ cultural backgrounds, experiences, and interests. However, few studies on these practices address long term improvements or treatments in a higher education setting. Integration of ethnoscience in course material is a CRP strategy that utilizes cultural systems of knowledge in relation to coursework. This strategy is now an area of interest in the field of chemistry education. This study uses an action research methodology to integrate ethnochemistry into a large, multicultural, first-year general chemistry course and evaluate the impact on student attitudes towards chemistry.</p> Higher education Inclusive education Other education not elsewhere classified Chemistry Education Research chemical education and teaching Culturally Relevant Pedagogy Ethnochemistry Self Determination Theory (SDT) general chemistry courses

Page generated in 0.049 seconds