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Science and Mathematics Education Commons™
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Full-Text Articles in Science and Mathematics Education
Developing A Theoretical Framework For Visualization-Based Pedagogical Content Knowledge (V-Pck) Based On Middle School Teachers’ Views And Uses Of Visualizations As An Instructional Tool, Jacqueline Samuel
Dissertations
Visualizations is a categorical term that is often used to provide visual imagery to the communication of processes, concepts, exemplar phenomena, and general information. Objects such as graphs, tables, diagrams, animations, and pictures fall in this category. Existing literature focuses primarily on the use of visualizations in the science field at the high school level, collegiate levels, and in pre-service teacher education programs. A gap in the literature exists which examines how science teachers at the middle school level perceive and use visualizations as instructional components in the classroom. The purpose of this study was to examine science teachers views …
A Statistically Significant Determination From Pretest To Posttest In Knowledge Of Electrophoresis Concepts, Parker Megehee Nelson
A Statistically Significant Determination From Pretest To Posttest In Knowledge Of Electrophoresis Concepts, Parker Megehee Nelson
Dissertations
The statistical significance from pretest to posttest of 109 high students constructing an electrophoresis chamber or not was explored. The students tested were from six intact biology classrooms. Three classes were treatment groups and three were control groups. The three biology teachers each taught a control and treatment group classroom. Except for building the electrophoresis chamber, students in both groups received identical instruction and testing. Pre- and posttest data was examined by means of a content valid test constructed by the researcher and biology teachers. In order to examine the statistical significance from pretest to posttest in knowledge of electrophoresis …