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Math Fair Grade Level: Elementary

Karate Bricks

A fake karate brick looks like a regular brick, but when it is hit with a karate chop, it disintegrates. Sometimes people use these fake…

Jumping Chips

The three red chips need to exchange positions with the yellow chips. The yellow chips can only move right.The red chips can only move left.A…

Jedi Knights

There are three Jedi Knights and three Storm Troopers who need to get from the planet Alderaan to the planet Tatooine. They have a spaceship…

Janus Upside Down

Janus is the Roman god of gates. He has a two-faced head because from each gate he needs to look in both directions. The first…

Les Choses Irritantes

Quand un grain de sable se retrouve dans une palourde, (une huître), ou autre mollusque, il devient un irritant. Le mollusque réagit à ce grain…

Irritating Things

When a grain of sand finds its way into a clam or other mollusk and becomes an irritant. The mollusk responds to the irritating grain…

Injection Molding

Injection molding is a technique for making a huge range of plastic objects like toothbrushes, fly swatters, and food containers. Molten hot plastic is injected…

House of Gloom

In the valley in the heart of the dark wood lives a gloomy elf. His doorless home is painted totally black so dark that no…

Hot Potato

There is a werewolf hiding in a red hood and 11 children sitting around a campfire. Katrina, who is sitting opposite the werewolf, plucks a…