Weapon classes are broken up into two weapon style categories.  In addition to different categories some weapon classes also have several levels.  A student must graduate certain levels in a standard weapon before moving on to an exotic.

Standard Weapons
Sword
Staff
Unarmed

Exotic Weapons
Dagger
Great Axe
Heavy/Mass Weapons (Mace & Hand Axe)
Spear
Sword and shield
Sword and dagger/sword
Whip