This set of 72 number and counting activities on 36 double-sided cards teaches kids number identification, number and set matching, number sequence, and more—important beginning math skills for school success. Just touch any Hot Dots Jr. pen (sold separately) to the dot to hear a correct or incorrect answer response. Fun lights and encouraging audio guide children through the cute, colorful lesson cards. Details:36 double-sided cards72 number and counting activitiesFor ages 3 and up