This article describes formative and design experiments and how they can advance research and instructional practices in early childhood education. We argue that this relatively new approach to education research closes the gap between research and practice, and it addresses limitations that have been identified in early childhood research. We…

This article examines a praxis model of teacher education and advances a new method for engaging novice teachers in reflective practice and robust teacher learning. Social design experiments--cultural historical formations designed to promote transformative learning for adults and children--are organized around expansive notions of learning and…

Findings of experimental and qualitative research on construction of science knowledge by students with mild disabilities are reported. Both lines of research indicate these students are able to construct scientific knowledge using scientific methods, positive outcomes are associated with implementation of teacher effectiveness variables, and…