Eat, Eat

Some more Chinese textbook stuff for work. This story teaches about size relationships (an early math concept.) The text I got started with a kid and a cat. Cat eats and cat grows bigger. Cat eats again and cat grows bigger again. You are now bigger than the dog, etc. The only reason I could think of for the cat to be growing so fast was for the kid to be a mad scientist. Seems logical to me. What, you have a better idea? I don't write these things. I just draw the silly pictures.