Educational Insights Hot Dots Jr. Let's Master Pre-K Reading Set with Ace Pen Give your kids the jump-start they need for academic success with this fun, interactive Hot Dots Jr. set and Acethe Talking, Teaching Dog pen. Includes 2 sturdy spiral-bound books with 100 lessons each and interactive electronic pen. Lessons cover letter recognition, reading readiness, phonics, sight words, punctuation, grammar, and more. Also includes 15 challenges for next-level skill prep! Press Ace to an answer dothe offers affirmative "ruffs" and encouraging words for correct responses, and gentle redirection for incorrect responses. Helps develop critical early learning skills and encourages self-paced independent learning. Ace grows with your child through dozens of Hot Dots and Hot Dots Jr books, workbooks, and card sets covering reading, math, science, and more! Pen requires 2 AAA batteries (not included).