Each lesson is designed to guide students through a concept based on grade-level Common Core State Standard(s). The lessons have built-in practice throughout the lesson as well as independent “Practice” problems at the end of each lesson. Each lesson and Practice set spans levels 1 through 3 on the Depth of Knowledge chart. The Teacher’s Guide provides supports including pre-requisite skills, learning progressions, ideas for incorporating the Mathematical Practices, teaching tips, communication prompt(s) and answer keys. Sample lessons (both student and teacher versions) are included below.