Uneasy about her new substitute teacher, Susan Simmons' suspicions about Mr. Smith are confirmed when she discovers he is an alien determined to bring some sixth-grade specimens back to his planet.

In rural Indiana in 1904, Fifteen-year-old Russell's dreams of quitting school and joining a wheat threshing crew are disrupted when his older sister takes over teaching the classroom at his one-room schoolhouse after mean, old Myrt Arbuckle "hauls off and dies".

In 1925, fourteen-year-old Ida Bidson secretly takes over as the teacher when the one-room schoolhouse in her remote Colorado area closes unexpectedly.

The students of room 12B are delighted by their eccentric new teacher, Mr. Bambuckle, but Principal Sternblast is not impressed.--

"Miss Bruce is the new student teacher in Jake's second-grade class, and she never smiles. Never. But when Jake cracks up during class during a spelling bee, he sees the tiniest hint of a smile at the corner of her mouth. Suddenly, Jake has a new mission in life; to be so funny that even Miss Bruce will laugh!"

Seventh grade was going to be awesome. The only thing missing was Mr. Terupt. The kids from Mr. Terupt's fifth and sixth-grade classes are entering their first year of junior high school. There's a lot to be excited about, but there are new challenges, too. Peter and Jeffrey face tough competition on their wrestling team. Alexia has a disastrous first day of school, and that's only the beginning. Anna is desperate for Charlie to propose to her mother--what...

Luke, disgruntled that his brother and friend have become superheroes, fails at solving crimes alone but when he discovers an alien plot to overthrow the world, only his sworn enemy will listen.

Nick and his friend Marta decide to investigate when a mysterious fire starts near a Florida wildlife preserve and an unpopular teacher goes missing.

When quiet sixth-grader Minnie gets a new language arts teacher who makes her think and ask hard questions, she is inspired to stand up for what she believes in.

Six-graders Mac and Vince, who operate an advice and assistance service for fellow students, face new dangers when a strict administrator is hired to clean up the school and a strange and dangerous girl asks for their help to have a teacher fired.