These games will help students develop fluency with addition, subtraction, multiplication and division, and strengthen number sense. Each grade level features 12 complete units aligned to the CCSS to build grade-appropriate computational fluency. Each in-depth unit includes warm-up activities, one or more games, ideas for differentiation, and suggestions to connect student thinking to the Mathematical Practices. The games use readily available supplies like paper clips and markers and are ideal for full-class or small group use. The CD includes animated presentation files to introduce each game and to reinforce the key math concepts as well as blackline masters.