MAKE MATH PRACTICE WAY MORE FUN: Practicing and mastering preschool math skills is much more fun with the Hot Dots Light-Up Interactive Pen! Kids press the pen to answer 50 pages of age-appropriate math activities and receive immediate audio-visual feedback EVERYTHING YOU NEED FOR PRESCHOOL MATH: This set includes an interactive electronic pen and a spiral-bound book with 50 pages of activities, including a skills review. Leveled questions cover a variety of preschool math skills including counting, numbers, patterns, shapes, sorting, and more INSTANT FEEDBACK: Pen provides audio sound effects for correct & incorrect responses. Hot Dots pen also lights up green for correct responses and lights up red for incorrect answers. Sounds can be muted. (Pen requires 2 AAA batteries. Batteries not included) CONFIDENCE BUILDING: Immediate audio sound effects and visual feedback enables kids to learn on their own at their own pace, building academic confidence and encouraging independence! Book includes reward stickers to track progress and celebrate success GET READY FOR SCHOOL - AT HOME: The Hot Dots Let's Learn Pre-K Math Set is the perfect way to introduce and practice critical math skills at home and on the go