Ella Mentary School is having a science fair! Guest scientist Dr. Snow has arrived to help A.J. and his friends conduct their own cool experiments. But what is "the snowman" really planning? And what does STEM even stand for anyway?

With more than 23 million books sold, the My Weird School series really gets kids reading! In this third book in the My Weirder-est School series, A.J. and his friends learn about good oral hygiene. Grab your toothbrushes! It's National Dessert Day, and Ella Mentry School has asked local dentist Dr. Floss to educate A.J. and his friends on the dental dangers of sweets. But Dr. Floss has other plans. She wants the kids to eat as much sugar as possible...

A.J. is planning a big birthday to celebrate turning 9 and his parents even hire a party planner named Mr. Marty. Mr. Marty orders some weird stuff to celebrate though.

Test scores are low and stress levels are high at Ella Mentry School. Wellness expert Ms. Jo-Jo has come to help A.J. and his friends relax so they can ace the upcoming Fundamental Arithmetic/Reading Test. But can turtle yoga and crystal salt lamps really help A.J. and his friends relax and focus? Or will the F.A.R.T. end up blowing them all away?

"After noticing that A.J. and his friends' geography knowledge could use some work, Mr. Cooper invites to class just the person to help. Globetrotter Mrs. Barr speaks seven languages and has visited nearly two hundred countries! But why does she carry a suitcase everywhere she goes? And why does she open a window whenever she walks into a room? Perhaps Mrs. Barr has something to hide"--Provided by publisher.

"There's a new principal at Ella Mentry School. Yes, it's true! Mr. Klutz is retiring and the president of the Board of Education, Dr. Carbles (Boo! Hiss!), has hired the best person for the job -- or at least the funniest. But stand-up comedian Mrs. Stoker will have to face Vice Principal Mrs. Jafee in a big joke-off duel to defend her new job. Will Mrs. Stoker have the last laugh? Or will shoe lose her audience when things get serious?"