Common Core Exercises Libraries OER 
Hapara
MAY 12, 2022
They come from sources such as the Michigan Open Book Project, Core Knowledge, CK-12, OpenStax and OER Commons. “Interactive Middle School Math 7” This middle school math online textbook aligns to the Common Core State Standards. High school elective – Creative Writing, Creative Process.
21st Century Educational Technology and Learning
JANUARY 21, 2019
MIT Blossoms – All of the lessons in the MIT Blossoms library have been contributed by BLOSSOMS partners from around the world. Lessons are aligned to Common Core Standards and explore real life questions. Find standards-aligned content and assign practice exercises, videos and articles.
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