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Cook, Kristin; Buck, Gayle; Park Rogers, Meredith – Science Educator, 2012
This study investigates a project-based learning (PBL) approach to teaching evolution to inform efforts in teacher preparation. Data analysis of a secondary biology educator teaching evolution through a PBL approach illuminated: (1) active student voice, which allowed students to reflect on their positioning on evolution and consider multiple…
Descriptors: Active Learning, Teaching Methods, Evolution, Biology
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Gass, Frederick – PRIMUS, 2006
Most beginning calculus courses spend little or no time on a technical definition of the limit concept. In most of the remaining courses, the definition presented is the traditional epsilon-delta definition. An alternative approach that bases the definition on infinite sequences has occasionally appeared in commercial textbooks but has not yet…
Descriptors: Calculus, Definitions, Scientific Concepts, Mathematical Concepts