Prepare kids for kindergarten! Hot Dots is an activity book, paired with an answer-checking interactive pen, that covers all the essentials 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 does not talk or read answers; it 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 interactive Hot Dots pen. For ages 5+. Pen requires 2 AAA batteries (not included).