OER

Open Educational Resources

https://www.opened.com/search

Huge searchable database of content you can use to instruct your students. Search by grade, type of resource, subject, and specific standard. Remember to check the box to search only free content.

https://www.oercommons.org/

Well respected Open Educational Resources library with many specific search features. Try the advanced search at https://www.oercommons.org/advanced-search

Math, science and English content for teachers to use with students. Includes articles, activities, lesson plans, practice questions, and assessments. CK12 also has its own classroom platform or items can be assigned to Google Classroom.

https://www.curriki.org/

Curriki has been part of the OER world for many years. They have built a platform for teachers to easily search their bank of teacher-created materials and also share their own with them Curriki community.

Text Sources

Video and Image Sources