Education Commons^™

Investigating Macroscopic, Submicroscopic, And Symbolic Connections In A College-Level General Chemistry Laboratory, Felicia Culver Thadison

Dissertations

Explanations of chemical phenomena rely on understanding the behavior of submicroscopic particles. Because this level is “invisible,” it is described using symbols such as models, diagrams and equations. For this reason, students often view chemistry as a “difficult” subject. The laboratory offers a unique opportunity for the students to experience chemistry macroscopically as well as symbolically. The purpose of this investigation was to determine how chemistry lab students explained chemical phenomenon on the macroscopic, submicroscopic, and representational/symbolic level. The participants were undergraduate students enrolled in an introductory level general chemistry lab course. Students’ background information (gender, the number of previous …

Beyond Jeopardy And Lectures: Using Microsoft Powerpoint As A Game Tool To Teach Science, Jason Paul Siko, Michael K. Barbour, Sacip Toker

Education Faculty Publications

To date, research involving homemade PowerPoint games as an instructional tool has not shown statistically significant gains in student performance. This paper examines the results of a study comparing the performance of students in a high school chemistry course who created homemade PowerPoint games as a test review with the students who used a traditional study guide on two separate unit tests. Students scored significantly higher on one of the two unit tests; however, there was no difference in performance between students who created games multiple times. This was the first time a significant difference has been reported when using …

Extensiveness And Perceptions Of Lecture Demonstrations In The High School Chemistry Classroom, Daniel S. Price

Department of Teaching, Learning, and Teacher Education: Dissertations, Theses, and Student Research

While lecture demonstrations have been conducted in chemistry classrooms for hundreds of years, little research exists to document the frequency with which such demonstrations are employed or their effect on learners’ motivation and performance. A mixed-methods research study was performed, using quantitative and qualitative survey data, along with qualitative data from follow-up interviews and structured correspondence, to determine the extent to which lecture demonstrations are used in high school chemistry instruction, and the perceived effects of viewing such demonstrations on students’ performance on course assignments and on motivation to excel in current and future chemistry courses. Fifty-two randomly selected chemistry …

The Complexity Of Reform Efforts In Science Curriculum And Instruction: A Case Study Of The Illinois Mathematics And Science Academy Chemistry Teacher, Tang Wee Teo

IMSA History

This study explores how teacher-initiated site-based reform in a specialized STEM school is conceptualized and enacted, how and why curriculum reform ideas change in the process of enactment, what qualities of teacher agency are entailed, how these qualities are acquired, interplayed, become generative, and/or are influenced to effect different curriculum reform outcomes, and how different conditions support and further teacher agency to make a more defensible curriculum.

In a critical case study of a highly experienced and qualified science teacher, I follow a teacher who initiated efforts to reform the advanced chemistry curriculum. This teacher wanted to make the curriculum …

The Implementation Of Pre-Lecture Resources To Reduce In-Class Cognitive Load: A Case Study For Higher Education Chemistry, Michael Seery, Roisin Donnelly

Articles

This case study describes an effective method to ameliorate the cognitive load caused by new terminology and concepts in lectures. Ten online pre-lecture resources whose design was underpinned by the principles of cognitive load theory were provided to a class of 49 first year university level chemistry students. Each resource introduced a number of key concepts to the forthcoming lecture and included a quiz for students to test understandings and identify misconceptions. The evaluation of the implementation of resources was measured by considering the difference in exam marks for in-semester test and end of module exam. These showed that the …