Common Core State Standards
"Educational standards describe what students should know and be able to do in each subject in each grade. In California, the State Board of Education decides on the standards for all students, from kindergarten through high school.
Since 2010, a number of states across the nation have adopted the same standards for English and math. These standards are called the Common Core State Standards (CCSS)"
"This three-minute video explains how the Common Core State Standards will help students achieve at high levels and help them learn what they need to know to get to graduation and beyond." (en Español)