LivingMontessoriNow.com is a good place to find links to sites offering free firefighter printables. The firefighter printables that the site links to are Montessori-inspired and teach kids about numbers, letters and fire safety.
In addition to being educational, these firefighter printables are fun for kids to help cut out, laminate and use for play time. One of the printables, Fire Truck Numeric Order Activity, combines a child's love of fire trucks with learning about numbers. The link called Fire Safety Theme and Printables leads to a page featuring the printables needed to play a fire truck alphabet game, a fire safety sounds game, and a fire truck dice-rolling and counting game.