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Analyzing The Retention Of Knowledge Among General Chemistry Students, James T. Kingsepp
Analyzing The Retention Of Knowledge Among General Chemistry Students, James T. Kingsepp
USF Tampa Graduate Theses and Dissertations
General chemistry is a survey course meant to form a foundation for students’ to build upon as they progress into chemistry sub-disciplines. The effectiveness of this foundation rests heavily on students’ abilities to retain or relearn concepts from the course. This study seeks to investigate the utility of a measure of general chemistry students’ knowledge retention across the time period of one semester. This approach was enacted in five different courses of either first or second semester general chemistry. The results showed that one-quarter to one-half of students exhibited a high rate of retention across the semester. A smaller group, …
Breaking The Language Barrier: Equitable Assessment In General Chemistry, Eshani Lee
Breaking The Language Barrier: Equitable Assessment In General Chemistry, Eshani Lee
UNLV Theses, Dissertations, Professional Papers, and Capstones
Because language provides the framework through which knowledge is constructed, it is crucial to consider the ways in which students with limited English proficiencies are able to express their understanding. English language learners (ELLs) make up a significant portion of the student body in the education system and represent many ethnic and racial minorities in STEM (Science, Technology, Engineering & Mathematics) fields (Burke & Mattis, 2007). Despite the national push to build a more diversified, STEM-ready workforce, there is little research that considers the way ELLs are assessed in STEM courses at the postsecondary level. Literature reports that science tests …
Assessing College Students' Understanding Of Acid Base Chemistry Concepts, Yanjun Wan
Assessing College Students' Understanding Of Acid Base Chemistry Concepts, Yanjun Wan
All Dissertations
Typically most college curricula include three acid base models: Arrhenius', Bronsted-Lowry's, and Lewis'. Although Lewis' acid base model is generally thought to be the most sophisticated among these three models, and can be further applied in reaction mechanisms, most general chemistry curricula either do not include Lewis' acid base model, or quickly mention it at the end of the acid base chapter, because of the concern that Lewis' model may confuse general chemistry students (Shaffer 2006). While such a disconnection in curriculum might put students to disadvantage as they try to construct solid and coherent acid base mental models, there …
The Measure And Instruction Of Scale In Introductory Chemistry, Karrie Linn Gerlach
The Measure And Instruction Of Scale In Introductory Chemistry, Karrie Linn Gerlach
Theses and Dissertations
As a student, it is fundamental to comprehend how small an atom or molecule is in order to truly understand how the world works. The American Association for the Advancement of Science (AAAS) has determined that scale is a critical theme that pervades through all areas of science and is critical to a deep understanding. This project determined that students, which are more proficient with scale and moving between the macroscopic and particle worlds, were better performers in chemistry classes. Interviews were used to determine what the students understood and what common misconceptions were present. These lead to the development …
Rapid Knowledge Assessment (Rka): Assessing Students Content Knowledge Through Rapid, In Class Assessment Of Expertise, Erin Margaret O'Connell
Rapid Knowledge Assessment (Rka): Assessing Students Content Knowledge Through Rapid, In Class Assessment Of Expertise, Erin Margaret O'Connell
Theses and Dissertations
Understanding how students go about problem solving in chemistry lends many possible advantages for interventions in teaching strategies for the college classroom. The work presented here is the development of an in-classroom, real-time, formative instrument to assess student expertise in chemistry with the purpose of developing classroom interventions. The development of appropriate interventions requires the understanding of how students go about starting to solve tasks presented to them, what their mental effort (load on working memory) is, and whether or not their performance was accurate. To measure this, the Rapid Knowledge Assessment (RKA) instrument uses clickers (handheld electronic instruments for …
A Study Of The Curriculum Of The Natural Science Division Of Ouachita Baptist University, Natural Sciences Group
A Study Of The Curriculum Of The Natural Science Division Of Ouachita Baptist University, Natural Sciences Group
Honors Theses
In our evaluation of the curriculum of the Natural Science Division, we began by reviewing the catalogue descriptions of our courses and evaluating whether the courses meet the objectives given. To do this we divided into departments since our division is so large. Next, we wrote to Hendrix, Little Rook University, Southwestern at Memphis, and State College of Arkansas and compared their course offerings with ours. In this comparison we discovered our strengths and weaknesses and changes that need to be made in our present curriculum. In several cases we decided upon possible alterations which would aid the student going …