My Weird School Books LOT by Dan Gutman. Number of books: 9

Book 1:  Miss Daisy is Crazy!

Book 3:  Mrs. Roopy is Loopy!

Book 4:  Ms. Hannah is Bananas!

Book 5:  Miss Small is of the Wall!

Book 6:  Mr. Hynde is Out of His Mind!

Book 7:  Mrs. Cooney is Loony!

Book 10:  Mr. Docker is Off His Rocker!

Book 11:  Mrs. Kormel is Not Normal!

Book 12:  Ms. Todd is Odd!