The Wayside School Collection: Sideways Stories from Wayside School/Wayside School Is Falling Down/Wayside School Gets a Little Stranger

Sideways Stories from Wayside School
Wayside School was supposed to be 30 classrooms, one story high; but by mistake it was built straight up 30 stories. And that's not all that's funny here.
Wayside School is Falling Down
More teetering tales and quirky characters from the thirtieth floor of towering Wayside School. The craziness continues.
Wayside School Gets a Little Stranger
When their teacher, Mrs. Jewls, leaves to have her baby, the kids go through a series of substitutes, each one a little stranger than the last.