Ally-saurus & the First Day of School by Richard Torrey
You can call her Ally-SAURUS! When Ally roars off to her first day at school, she hopes she'll meet lots of other dinosaur-mad kids in class. Instead, she's the only one chomping her food with fierce dino teeth and drawing dinosaurs on her nameplate. Even worse, a group of would-be princesses snubs her! Will Ally ever make new friends?