Get ready for battle Ever wondered what it's like to fly a fighter plane or take over a tank? Deploy this exciting set and explore the power of military machines. Vivid photos pair with easy-to-read text to make you an instant expert on the world's mightiest land, sea, and air machinery Little Pebble books have an ATOS level of 1.0 or below. Bring augmented reality to your students by downloading the free Capstone 4D app and scanning for access to an online article, video, and discussion questions.