Education Commons^™

A Professional Development Program For Science Adjunct Faculty: The Mentoring-Learning Community (Mlc), Linda B. Purvis, Jason D. Lang, Julie A. Luft

Georgia Journal of Science

Institutions of higher education have become increasingly dependent on adjunct faculty. These faculty members are often unfamiliar with current teaching strategies emphasizing an active learning approach. To support science adjunct faculty in learning about active learning, a professional development program was designed and implemented by the authors of this study, the Mentoring-Learning Community. The Mentoring-Learning Community program design was informed by literature regarding the use of professional development programs that focused on adjunct faculty. To determine the impact of this program, participants in the Mentoring-Learning Community were observed and interviewed over one semester. Mentoring-Learning Community participants transformed through all three …

Effect Of Hypothesis Type On Scientific Literacy In Nonscience Majors, Sharon Schmidt, Leanne Davis, Danyelle N. Dehner-Aganovic, Margaret (Meg) Smith

Georgia Journal of Science

The University System of Georgia has undergone nine consolidations of institutions of higher education in the past seven years. One consequence of a consolidation is that faculty from historically different institutions are brought together to work in newly-created units, and this requires merging of ideas, particularly at the departmental level. In the Department of Biology of our own institution, this manifested as differences in the types of hypotheses taught in nonmajors classes in which scientific literacy is a learning outcome of high priority. Data can be useful for resolving such differences, but there was limited data on the effect of …

Demonstration Of A Distributed Bragg Reflector For Polyvinylcarbazole And Cadmium Sulfide Layers: Modeling And Comparison To Experimental Results, Javier E. Hasbun, L. Ajith Desilva

Georgia Journal of Science

Light wave propagation in a periodically stratified medium has many applications in physics, mathematics, and engineering. The subject is of interest to students, teachers, and researchers, as it presents a great opportunity to focus on principles of optics and to understand the basics of mathematical modeling. A complete theory of wave propagation can be derived using Born’s optics theory. We employed that theory to determine the reflectivity of a one-dimensional distributed Bragg reflector (DBR) and do simulations using MATLAB. A DBR is a photonic crystal consisting of alternating layers of materials with different refractive indices. In this study, we modeled …

A Transdisciplinary Laboratory Course Increases Stem Retention, Caroline A. Brown, Royce Dansby-Sparks, Sarah Formica, Margaret (Meg) Smith

Georgia Journal of Science

STEM retention is a national challenge. Recent literature suggests that students leave STEM for many reasons including lack of context, lack of academic preparedness for entering college, and challenges with quantitative reasoning. These observations compelled us to design an introductory, transdisciplinary STEM lab course which we describe herein. This course was designed to integrate the disciplines of biology, chemistry, physics, and mathematics with activities that engage students in real-world, inquiry-based exercises and help students develop quantitative reasoning skills. Assessment showed that students in this STEM lab have higher STEM retention rates than those in equivalent disciplinary courses. The largest gains …

Variations In Implementation Of Specifications Grading In Stem Courses, Mai Yin Tsoi, Mary E. Anzovino, Amy H. Lin Erickson, Edward R. Forringer, Emily Henary, Angela Lively, Michael S. Morton, Karen Perell-Gerson, Stan Perrine, Omar Villanueva, Marygeorge Whitney, Cynthia M. Woodbridge

Georgia Journal of Science

Specifications grading is an assessment strategy based on mastery learning, clear learning objectives, and frequent evaluations and feedback. Twelve instructors at a southeastern four-year public college implemented the specifications grading method across eight discrete courses in four STEM areas. In this modified assessment strategy, the students controlled their grades through multiple attempts, with limitations, on assessments of course objectives. The instructors designed and executed specifications grading in unique ways that aligned with their content areas, teaching beliefs, and individual teaching styles.

Preliminary observations suggest that, regardless of subject area, specifications grading can be used as an alternative to traditional assessment …

The Effects Of Supplemental Instruction On Student Achievement In College Algebra, Rhonda C. Porter

Georgia Journal of Science

College algebra consistently has a very high number of students performing poorly. An experimental study addressing student performance was conducted. Two college algebra classes each with 25 students and with the same teacher were used, one as the control group and the other as the experimental group. The experimental class included mandatory supplemental instruction for an extra class period per week. T-tests were used to compare performances on each test and homework. A repeated measures 2 X 2 ANOVA was used to compare the students' performance on a pretest and a posttest between each class. The Mann-Whitney U test was …

Exploring The Use Of Free Bioinformatics Modules In An Introductory Biochemistry Course, Charlsey Dodgen, Uzezi Uwerosuo, Chulhee Kang, Cathy Lee

Georgia Journal of Science

Although bioinformatics, the use of computational science to study biology, has become imperative in many areas of the biological sciences and related career paths, introductory biochemistry courses may disregard practical knowledge on bioinformatics. For this reason, we merged a hands-on activity module into an undergraduate biochemistry course in two ways. First, we incorporated bioinformatics modules for building phylogenetic trees by aligning the active sites of 10 chosen related α-amylase enzymes using freely available data. Secondly, we chose three of those 10 α-amylase enzymes to compare the 3D structure of their active sites. This module gives the students an opportunity to …

Introducing Abstract Mathematics Through Digit Sums And Cyclic Patterns, Sudhir Goel, Shaun V. Ault

Georgia Journal of Science

Using simple concepts that middle and high school students should be able to grasp, including “clock face arithmetic,” the standard multiplication table, and adding the digits of a number together, more abstract concepts such as modular arithmetic and cyclic groups may be introduced at an early stage in the students’ mathematical career. We find this approach to be organic and appealing to most students, encouraging them to think in different ways about familiar objects, and we encourage educators to test the concepts in their own classrooms.