Open Ed Resources

From the LA County Office of Education

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Guide to Quality Instructional Materials.

Textbooks for AP biology, physics, and economics

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K-12 open textbooks in math and English language arts

K-12 math is free; other curriculum sets are only available for purchase

K-12 resources in Virginia

Maryland Open Source Textbook Initiative

Searches 18 different OER repositories

K-12 only; does require an account, and is scheduled to close June 30, 2020

Washington Office of Superintendent of Public Instruction

Gwinnett County Public Library

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Mostly STEM

University of Colorado Boulder; interactive math and science simulations

High school Level

Math and Science

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U.S. Census Bureau