This dissertation explores fifth and eighth grade students' interpretations of three kinds of mathematical representations: number lines, the Cartesian plane, and graphs of linear functions. Two studies were conducted. In Study 1, I administered the paper-and-pencil Linear Representations Assessment (LRA) to examine students'…

This research examined the impact of formative quizzes on e-learning designed to teach volunteers how to tutor struggling readers. Three research questions were addressed: (1) Do embedded quizzes facilitate learning of e-content? (2) Does the announcement of upcoming quizzes affect learning? (3) Does prior knowledge interact with quizzing and…