Common Core State Standards (CCSS) are the new state learning standards. Thus, students will take a new test (CAASPP) instead of the STAR test that most have become accustom to. CAASPP better asseses the Common Core learner, which means the students need a deeper level of understanding. Eye Level materials are aligned with the CCSS and can help students obtain a deeper understanding of the concepts.
For more information about CAASPP: http://www.cde.ca.gov/ta/tg/ca
Also, the California Department of Education provides a practice test: http://tinyurl.com/nfhqt44