Standards-based learning just got a lot easier This new version of The Common Core Companion provides an index for all states implementing state-specific ELA standards. This index allows you to see in an instant which of your standards are the same as CCSS, which differ and how—and which page number to turn to for standards-based teaching ideas. Beyond that? It’s the same great go-to guide for implementing the standards, translating each and every standard for reading, writing, speaking and listening, language, and foundational skills into the day-to-day "what you do."