Flexbook tool for creating online textbooks, offers Edmodo apps for locating and distributing Common Core-aligned math and science practice quizzes. The CK-12 Math Edmodo app and the CK-12 Science Edmodo app provide libraries of quizzes that cover middle and high school science and mathematics concepts. Practice quizzes are posted as assignments and your students' scores automatically show up in your Edmodo Gradebook.
Applications for Education
The CK-12 Edmodo apps could be useful for quickly locating practice assessments to distribute to your students as prior knowledge check before embarking on a new series of lessons.