Beaver's teacher, Miss Canfield, sends a note home with Beaver and the other kids convince him that it's news that he's getting kicked out of school. Beaver and Wally take steps to hide the note from Ward and June.

Beaver has a crush on his teacher, Miss Canfield. When Judy, Whitey and Larry tease him for being a 'teacher's pet,' Beaver tries to prove them wrong and places a spring snake in her desk. However, Beaver has second thoughts and becomes determined to remove the snake before she finds it.

June and Ward make Wally and Beaver promise that they won't go to the movies and see a scary movie. However, Wally and Beaver are talked into seeing it, thanks to Wally's so-called best friend, Eddie Haskell. The movie has quite an influence on Beaver, who makes a voodoo doll, names it Eddie Haskell, and sticks it with pins.

After taking an IQ test, Beaver scores the highest in his class and Mrs. Rayburn suggests that it would be best if Beaver went to a special school where his abilities can be challenged. However, little does anyone know that everything is not as it seems.

Ward tries to teach Wally and Beaver the importance of saving by giving them a piggy bank. The boys quickly save up a handful of change and are all ready to spend it on some baseball equipment. However, unknown to their parents, they change their minds and decide to spend the money on a most unselfish gift.

Beaver makes a trade with Larry Mondello: a glass doorknob for a Chihuahua. Larry found the dog in his garbage can, so when Beaver brings it home, Ward immediately breaks the news that he's going to place an ad in the lost and found and that Beaver probably won't be able to keep the dog. Despite this, Beaver quickly begins to grow close to the little pooch.

Beaver comes to Ward for help on the night before a poetry assignment is due. This prompts Ward to totally take over the project and writes the whole poem himself. Things get complicated when Beaver wins an award for the poem and Ward is faced with explaining the truth to Beaver's principal.

Wally asks out a rich girl who drops hints that she would like an orchid for her corsage. Wally quickly discovers that getting one is going to be more difficult then he originally thought.

Beaver must write a composition about his mother but soon finds himself the only one with a seemingly ""boring"" mother while Richard, Larry and Judy have colorful mothers. Beaver decides to make his mother colorful too even if it means making up things.

After learning that he's going to be taking an I.Q. test, Beaver hits the books, scared after his friend tell him that if he doesn't pass, he will be sent to ""dumb"" school.

Beaver's class is having a group picture taken and while having it done, Gilbert goads Beaver into making a face with him when they snap the picture. However, when the picture is actually taken, Gilbert backs out and Beaver is the only one making a face.

Beaver, Richard, Whitey and Alan each buy sweatshirts that have monster faces on the front of them. They like them so much they each decide to wear them to school the next day. However, each one finds that their parents forbid them from wearing such hideous sweatshirts to school. However, Beaver manages to sneak out of the house with his on.

Beaver comes home with the news that he applied to appear on a local television show called Teen Forum and he has been accepted. Beaver gets out of classes for the taping and all his classmates are treated to being able to watch him on TV during class. However, what Beaver, his friends and family don't know is that the show tapes each episode a week in advance.

June and Ward are excited when they learn that Aunt Martha has made arrangements to send Beaver to a prep school in New England. However, Beaver quickly realizes he will miss his friends as they are all entering Mayfield High School next year. This puts Beaver in a delicate position, how to tell Aunt Martha he doesn't want to go without hurting her feelings.

Beaver has been assigned to write a book report on The Three Musketeers. However he's waited right down to the wire to get reading and quickly realizes that he'll never get finished. He decides to watch the movie that's going to be on TV and write his book report based on the movie.

It's come down to the final week before junior high school graduation and Beaver is having a ball and even skips a class with Gilbert. However, Beaver becomes convinced he won't graduate after Gilbert and him take a peek at the diplomas on Mrs. Rayburn's desk and find Beaver's diploma to be missing.

Beaver's school is having a clothing drive and whoever brings in the most clothes is awarded 1000 school points. June, Ward and Wally round up all the old clothes they can find and put them in a box. When Beaver picks up the box to take into school, he mistakenly thinks Ward's nearby suits for the dry cleaner are also for the clothes drive.