Prepare kids for kindergarten! Hot Dots is an activity book, paired with an answer-checking interactive pen, that covers all the essential skills for kindergarten. Read the question, press the tip of the pen to a black answer dot, and get instant feedback from the pen. The pen turns green for correct answers and red for incorrect answers. The pen can also be muted for quiet learning. Learn essential kindergarten skills like rhyming, early reading and spelling, counting, addition, subtraction, and more! Includes 36 double-sided activity cards with ABCs and 123s and an interactive Hot Dots pen. Ages 5+. Pen requires 2 AAA batteries (not included).