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Math Fair Category: Number Operations

Multipingo

Students begin by writing numbers on their own five by five grid like the one shown on the right. Numbers can be used more than…

Lights On!

There are seven lights in a circle. They are all turned off and the problem is to turn them on. Each light has a switch.…

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…

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…

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…

India 500

The India 500 is the most prestigious space race of them all. The spacegirls and spaceboys jump-jet in Madras, India at 12:00 midnight January 1st…