Star Log: Day 100. Base camp is lively. I greet my crewmates and admire their work. We have mastered many skills on our journey, but today brings a new milestone. There have been: 100 roll calls. 100 songs. 100 pledges. 100 challenging days full of exploration and triumph! Little ones will be over the moon as they celebrate school's 100th Day with this clever, dynamically illustrated book, and eager to suit up for another daring adventure exploring...