In the first part of this dissertation, I document wiki usage in U.S. K-12 settings by analyzing data on a representative sample drawn from a population of nearly 180,000 wikis. My research group, which I lead and managed, measured the opportunities wikis provide for students to develop 21st century skills such as expert thinking, complex…

FirstSchool is a school reform approach to early schooling for children 3 to 8 years old. It was developed over the past five years through a collaborative partnership among families, schools, communities, and institutions of higher education. The approach responds to the needs of all young children--especially in African American or Latino…

This report summarizes a research analysis examining instructional practices for positive impact on achievement of low-income, English learner students as measured by the English Learner Academic Performance Index (EL-API) and other achievement tests. The report provides additional interpretive information. Based on research that surveyed teachers…