Invite students to join in mysteries and adventures of colorful characters. They will delight in the high-appeal topics and engaging visuals while they are moving toward competence with critical language and math skills that they need for success in the real world. The pages of each book are tools to support teaching of the concepts, processes, and skills outlined in the Common Core State Standards. Each activity is focused on a particular standard or cluster of standards, but most make use of or can be expanded to strengthen other standards as well.