The document discusses the key shifts in English language arts and literacy instruction required by the Common Core State Standards. It outlines six major shifts, including increasing the amount of nonfiction and informational texts students read, providing literacy instruction across all subjects, exposing students to more complex texts each grade level, basing reading, writing, and discussions on evidence from texts, emphasizing evidence-based writing, and regularly building students' academic vocabulary. The standards were created by state leaders to ensure students graduate college and career ready in the modern world.