Science and Mathematics Education Commons^™

Challenges In Assessing College Students' Conception Of Duality: The Case Of Infinity, Grace Olutayo Babarinsa-Ochiedike

Open Access Theses & Dissertations

Interpreting students' views of infinity posits a challenge for researchers due to the dynamic nature of the conception. There is diversity and variation among students' process-object perceptions. The fluctuations between studentsâ?? views however reveal an undeveloped duality conception. This study examined college students' conception of duality in understanding and representing infinity with the intent to design strategies that could guide researchers in categorizing students' views of infinity into different levels.

Data for the study were collected from N=238 college students enrolled in Calculus sequence courses (Pre-Calculus, Calculus I through Calculus III) at one of the southwestern universities in the U.S. …

A Novel Approach To Using Personal Response Systems And Diagrams To Foster Student Engagement In Large Lecture: Case Study Of Instruction For Model-Based Reasoning In Biology, Johanna M. Fitzgerald

Doctoral Dissertations

At UMass Amherst a method of personal response system (clickers) use in large lecture biology called Guided Application of Model-based Reasoning (GAMBR) has been designed to give students experiences in reasoning like expert biologists: In large lecture biology many instructors appear to use clickers mainly as a quizzing and attendance tool. Less well documented and examined are uses of clickers to facilitate cognitive engagement in learning scientific models and skills. In GAMBR, clicker questions ask students to apply and perturb biological models; this is designed to engage them in model-based reasoning. In an attempt to understand such a course, an …

Instructional Change In Academic Departments: An Analysis From The Perspective Of Two Environment-Focused Change Strategies, Kathleen M. Quardokus

Dissertations

Numerous reports demand changes in college and university teaching practices. This is especially true for science, technology, engineering and mathematics (STEM) disciplines. STEM stakeholders are concerned about student retention within STEM majors, as well as the lack of sufficient graduates with the knowledge to advance these fields. A common conclusion of these reports is that teaching practices must change. Although these calls for change have occurred for decades, STEM fields have yet to experience widespread change. Thus, there is a need for more effective change strategies. Recently, researchers have suggested that effective change strategies should focus on changing the environments …

Chemistry Graduate Teaching Assistants: A Comparison Of The Classroom Discourse Within Expository And Problem-Based Learning Laboratories, Kelley M. Current

Masters Theses

Graduate Teaching Assistants (GTAs) commonly function as instructors within undergraduate chemistry laboratories. This study sought to explore and describe GTA classroom discourse within two distinct instructional modes, using discourse analysis as the theoretical framework. Theclassroom discourse within a series of verification style labs was comparedto the classroom discourse produced within a set of Problem-Based Learning (PBL) labs. The results suggest three primary findings: (1) the apparent relationship between the instructional mode and form of GTA classroom discourse, (2) the patterns in classroom discourse observed within a given instructional mode repeat, irrespective of content, and (3) the classroom discourse observed within …

Study Of The Design Of A First Generation Community College Stem Learning Community, Susan M. St. Pierre

Higher Education Student Work

First generation students attending college have difficulties achieving academic success, engaging with their peers and persisting (Jehangir, 2010); are growing in number on college campuses; and are significantly underrepresented in STEM programs of study. This research examined the role that a STEM focused Learning Community (STEM LC) and student participation in Early College programs with STEM exposure have on first generation student achievement engagement and retention. The purpose of the project was to research and design a framework for a community college STEM LC for first generation students as a means to increase academic achievement and student retention for this …

Cataloging Lesson Plans Developed By Pre-Service Science Teachers During A Summer Research Experience, Robert Tollman Mclaren

Physics

This study is modeled after the senior project “Teachers Who Conduct Research and their Ability to Apply their Experience to Lesson Plans” by Cal Poly student Megan Ziegler and includes an independent analysis of the 2011 and 2012 lesson plans that participants in the STEM Teacher and Researcher (STAR) Program developed as part of their summer research experience. At the end of the STAR summer research program, STAR Fellows are required to submit lesson plans. During Spring Quarter of 2012, I had the opportunity to catalog lesson developed during Summer 2011. Later in Fall Quarter of 2012, Cal Poly undergraduates …

Undergraduate Perception Of Introductory Lecture And Laboratory Biology Instructors At The University Of Tennessee Knoxville, Katharina Denise Kendall

Doctoral Dissertations

Undergraduate students entering the higher education system are often unaware of the diverse teaching and learning community they will encounter, including the different instructor types who will teach their classes. In order to accommodate the growing numbers of enrolled students, the higher education system is increasingly reliant on contingent instructors such as non-tenure track faculty members and graduate teaching assistants (GTAs). This dissertation explores undergraduate student perspective of the different instructor types who teach introductory biology courses, with a focus on the University of Tennessee, Knoxville (UTK). The goal of this work is to provide insight regarding how perceived differences …

Sketchmate: A Computer-Aided Sketching And Simulation Tool For Teaching Graph Algorithms, Kristy Sue Van Hornweder

Doctoral Dissertations

In this dissertation, we developed and tested a sketching, visualization, and simulation tool called Sketchmate for demonstrating graph algorithms commonly taught in undergraduate computer science courses. For this research, we chose to focus on shortest path and network flow algorithms. Two versions of this tool have been implemented: 1) an instructor tool that supports computer-aided manual simulations of algorithms that augment traditional whiteboard presentations, allowing lectures to be more dynamic and interactive, and 2) a student tool that supports computer-aided manual practice of algorithms that enables students to work through homework problems more quickly while providing detailed incremental feedback about …

Using The R Library Rpanel For Gui-Based Simulations In Introductory Statistics Courses, Ryan M. Allison

Statistics

As a student, I noticed that the statistical package R (http://www.r-project.org) would have several benefits of its usage in the classroom. One benefit to the package is its free and open-source nature. This would be a great benefit for instructors and students alike since it would be of no cost to use, unlike other statistical packages. Due to this, students could continue using the program after their statistical courses and into their professional careers. It would be good to expose students while they are in school to a tool that professionals use in industry. R also has powerful …

Assessing The Effect Of Simulation Models On Systems Learning In An Introductory Environmental Science Course, Heather J. Skaza

UNLV Theses, Dissertations, Professional Papers, and Capstones

While there is plenty of anecdotal evidence within the systems dynamics community supporting the use of systems simulations in the classroom to improve student understanding, there is little published, controlled, experimental research. This paper describes the results of a paired experiment testing the effect of using system dynamics simulations to increase systems understanding in an introductory environmental science course. We believed that the students using the systems simulations would demonstrate a greater systemic understanding of environmental issues than those who did not.

We conducted an experiment during the fall semester of 2009, with 304 students enrolled in four sections of …

Students’ Assessment Of Biology Education At Marshall University, Chris A. Barker

Theses, Dissertations and Capstones

The purpose of this thesis research was to evaluate the quality of scientific education offered in the College of Science’s Department of Biology at Marshall University. The objectives of this study were to emphasize the important aspects of higher education assessment, point out that a scientifically literate citizenry is imperative for society to function effectively, and to determine what factors contribute to differences among students with regard to their perception of the quality of scientific education they are receiving at Marshall. A survey questionnaire was administered to students in eleven biological science courses during the Fall semester of 2003 and …

When Human Life Begins, Susan K.P. Das

Theses and Dissertations

The moment attributed to the beginning of human life is debated not only in religious and political communities, but within the scientific community as well. Particular attention is given to this issue as advances in science make it possible to manipulate the embryo and fetus at early stages of development. This study explores these issues as they are revealed in the literature. In particular, examination of the stages of human development associated with this issue and the correlation between these stages and their influence on ethical concerns in current scientific technologies such as abortion, cloning, and embryonic stem cell experimentation.

Grading The General Chemistry Laboratory: A Constructivist Approach., Barbara Stewart

Electronic Theses and Dissertations

Constructivist theories of learning posit that instructors cannot transfer their knowledge to students; students must actively construct their own understanding. The Inter-Chem-Net project uses technology and instrumentation to provide an individualized experience within the large general laboratory course, effectively establishing a constructivist methodology. A grading rubric was developed to communicate course expectations and provide an easy and reliable method of evaluating student work in the general chemistry laboratory. The grading rubric separates the learning outcomes into a checklist of skills associated with each particular grade. This checklist provides detailed feedback for individualized choices of experiments, a key component of the …

Correlation Of American College Test Scores In Mathematics With First Semester College Freshman Grade Point Average, J. David Lester

Morehead State Theses and Dissertations

An applied project presented to the faculty of the School of Education at Morehead State University in partial fulfillment of the requirements for the Degree of Specialist in Education by J. David Lester on July 28, 1988.