Publisher Houghton Mifflin's "GO Math!" program for grades one through six features an answer key as part of the chapter resource booklets available to teachers. Each chapter in the "GO Math!" book comes with a set of enrichment activities, assessments, reteaching interventions and game directions.
Other print resources available to teachers using the "GO Math!" program include the teacher's edition to the book, which contains directions regarding best practices and guidance for organizing the curriculum. A planning guide explains the correlation of the program with Common Core State Standards, and ready-to-use math centers provide activities and games that work with every chapter and lesson.