Spark a love of numbers and build math confidence with Hot Dots featuring the global TV series Numberblocks. Children use the Hot Dots Numberblocks pen to answer early stage math questions, receiving immediate feedback, including audio, sounds and music from the show. Interactive pen includes a 60-page, spiral-bound book with more than 60 math activities. Children ages 5 and up can practice number recognition from 11 to 20, number order, addition/subtraction, multiplication/division and more. Pen requires two AAA batteries (not included).