This Hot Dots Jr. two-book set with included Hot Dots Jr. pen provides children with 100 lessons on a variety of math skills. Includes 85 Kindergarten-level math lessons in these areas: Counting & Numbers, Patterns, Time, Shapes & Geometry, Fractions, Measurement, Money, and Math Facts, PLUS 15 challenge lessons that prepare children for skills at the next grade level. This set includes Ace—the Talking Teaching Dog Pen, part learning companion, part magic wand, the Hot Dots Jr. Pen talks, laughs, lights up and even buzzes with excitement as children explore. # Pieces In Set: 5 Learning Skill: Math Power Source: Battery (not Included) Measurements: 8.3 Depth/Inches, 2 Height/Inches, 9.3 Length/Inches Base Material: 100% Paper Battery Size: Aaa Care: Wipe Clean Country of Origin: Imported