Hot Dots Jr. Let's Master Grade 1 Reading. These two-book sets include a Hot Dots Pen and 100 interactive lessons on a variety of reading and language arts skills, from comprehension and vocabulary to spelling and punctuation. Two 50-page books and Hot Dots Jr. Pen. Bonus 15 challenge activities that prepare children for next-level skills. Encourages independent learning. Requires 2 AAA batteries (not included). Ages 6+.