Complete Elementary Language Arts learning system provides comprehensive coverage of the current standards for Grades 1 - 6 Reading/Language Arts. Includes all six Class-Pack versions of the Mastering Language Arts Skills Games - 1. Grade 1 (22-1001) 2. Grade 2 (22-2001) 3. Grade 3 (22-3001) 4. Grade 4 (22-4001) 5. Grade 5 (22-5001) 6. Grade 6 (22-6001)