books.google.com - Something weird is going on!It's Thanksgiving! A.J. is thankful for four days off from school. But he's not thankful for Dr. Carbles, who is grumpier than ever. Dr. Carbles even fires Mr. Klutz! Will A.J. and his friends be able to save their principal's job? ...http://books.google.com/books/about/My_Weird_School_19_Dr_Carbles_Is_Losing.html?id=6rzGJcDOfYIC&q=graders&utm_source=gb-gplus-shareMy Weird School #19: Dr. Carbles Is Losing His Marbles!