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Over 2,000 free ebooks that are accessible on any internet-capable device
Project Gutenburg
: Free common core aligned and NSES aligned digital textbooks
CK-12 Foundation
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This arcade is a portal to games and interactive activities focused on ocean and air themes. It highlights the science and the activities of the National Oceanic and Atmospheric Administration (NOAA) and other agencies and organizations promoting environmental stewardship.
NOAA Project Arcade
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Student Coding & 3D Modeling links