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Primary
Virginia Tech

Virginia Tech: Digital Library & Archives: Models of Curriculum Integration

For Teachers Pre-K - 1st
This e-journal, from Virginia Tech, provides and comprehensive background and a visual reference to interdisciplinary curriculum.
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Professional Doc
Other

Duke: Center for Inquiry Based Learning

For Teachers 3rd - 8th
Duke University has established the Center for Inquiry-Based Learning. It serves to enhance math and science lessons. Click on Resources for good examples of Inquiry-based lesson plans.