The intervention consisted of assistance to participating teachers in technology planning, professional development, and follow-up assistance and support. The project focused on classrooms with high populations of traditionally underserved students, including economically disadvantaged, linguistically diverse, rural, American Indian, and Mexican American students. Tier 2 consisted of detailed case studies of six teachers and how they created constructivist learning environments. Tier 1 was a collective case study of approximately 150 classrooms in 5 southwestern states whose teachers received training in applying technology. A two-tier intervention study was designed to provide descriptive models of constructivist learning environments supported by appropriate technology, as they emerged in project classroom.
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