The iTunes U courses linked to below were developed by a group of classroom teachers to explain the Shifts in ELA / Literacy and mathematics required by the Common Core. Presented in partnership with The Council of Chief State School Officers (CCSSO), they showcase a combination of materials from this website as well as additional curated resources and interactive activities. These courses were designed to provide a robust self-learning opportunity for individual teachers and to offer high-quality, credible materials that can be used to support professional learning communities in schools.For optimal viewing, we recommend using iTunes U on an iOS device. If you are new to iTunes U, see our Introduction to iTunes U video below, where you will learn how to access and navigate the courses.