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OpenEd is the largest K-12 educational resource library, offering over a million assessments, homework assignments, videos, games and lesson plans for every Common Core Math, Language Arts, Literacy and Next Generation Science standard. OpenEd lets you assign quizzes and homework to your students and automatically grades them, recommending videos for whatever they have problems with. The result is truly personalized learning for each student.

OpenEd’s assessments are “resource-backed”: each question has specific resources associated with it.

OpenEd also offers a free modern (Common Core, SBAC and PARCC-oriented) assessment tool. After a student takes a formative assessment OpenEd recommends just the right resources for the student to watch or play to gain mastery. OpenEd's also offers free assessments for every Common Core Standard and more. We are the only free and open source assessment item bank in existence. Over 150,000 teachers use OpenEd, reaching o