The students at Crystal Cove High School are very unhappy with how the cafeteria food is being served. Some people are getting larger portions of their favorite food than others. Scooby-Doo and the gang come to investigate. They start by comparing the amount of food on their own plates. Seeing it's not being served fairly, they decide to set a trap and catch the Lunchroom Gobbler who's responsible for the lack of fairness.The colorful pictures clearly show how to use the "greater than" and "less than" math symbols correctly. The story is so entertaining that you forget you're reading a math lesson. ( )