CCCSS-California Common Core State Standards
The Common Core State Standards (CCSS) define what students should understand and be able to do in English Language Arts and Mathematics. Students who master the CCSS will be prepared for college-level courses and possess the skills necessary for success in today’s workforce. 
The CCSS include a focused and coherent set of standards that provide students the opportunity to achieve proficiency in key topics that are introduced in early grades and built upon in successive years. By focusing on central concepts necessary for the study of more advanced mathematics in later years, students gain greater depth of understanding.