Saftey frist!!! This is an easy job, but if you have not ever done it, i would ask help of someone that has. You can also check out a diy site or type in how to change brake rotors? You need to know the terminolgy as well rotors, calipers, pins, pucks. bleeders ,etc.
Block the car up .Never work under an un blocked car. (NOT JUST ON A JACK.)
Remove the wheels. Remove two bolts holding calipers on. slide calipers off. Remove locking device that holds rotors on. remove rotors. To install reverse the process. Hope this helps. Have fun and do be safe.
SliderHow to change my 2003 Mazda rotor front and back?Take off the calipers and remove the rotor