Education Commons^™

Reformed And Traditional Mathematics Teaching Approaches: Are They Related To The Mathematics Achievements Of U.S. Students Across Racial Groups?, Qiang Cheng

UNLV Theses, Dissertations, Professional Papers, and Capstones

Promoting problem-solving and reasoning among all U.S. students and closing mathematics achievement gaps across different racial groups have become important foci in the current U.S. mathematics education reform. Framed through three contentious theoretical assumptions underlying reformed teaching, traditional teaching, and culturally relevant pedagogy, this dissertation investigates the relationship between the two kinds of teaching and the relevant mathematics achievements of students across racial/ethnic groups. The study examines specifically such a relationship drawing on U.S. eighth grade data set from the Trend in International Mathematics and Science Study (TIMSS) 2007 and using a two-level hierarchical linear modeling (HLM) approach. Results from …

Students' Conceptions About Climate Change: Using Critical Evaluation To Influence Plausibility Reappraisals And Knowledge Reconstruction, Doug Lombardi

UNLV Theses, Dissertations, Professional Papers, and Capstones

The Intergovernmental Panel on Climate Change (2007) reported a greater than 90% chance that human activities are responsible for global temperature increases over the last 50 years, as well as other climatic changes. The scientific report also states that alternative explanations (e.g., increasing energy received from the Sun) are less plausible than human-induced climate change. These climate scientists have made their plausibility judgment--which I define as the relative potential truthfulness of alternative explanations--based on the evaluation and coordination of multiple lines evidence with competing theoretical perspectives.

Climate change is a highly relevant and gravely serious topic; in an educational setting, …

Writing In Science: Influences Of Professional Development On Teachers' Beliefs, Practices, And Student Performance, Lori Fulton

UNLV Theses, Dissertations, Professional Papers, and Capstones

Science education reform calls for learners to be engaged in hand-on, minds-on activities related to science. As a part of this reform effort, learners are encouraged to use writing as a means of documenting their work and developing their understandings. This qualitative case study employed the Conceptual Change Perspective and Sociocultural Perspective to examine the impact on three elementary teachers' beliefs, practices, and student outcomes, as they relate to science notebooks, based on their participation in a professional study group. Data sources included teacher and student interviews, video of the study group meetings, video of classroom lessons, and student work …