Gohan is the son of
Goku and
Chichi in the
DragonBall Z series of cartoons. He's a little kid until the later episodes, after
Goku meets his maker. At this point, Gohan becomes the main
protagonist of the show, and
Goten and
Trunks are the powerful little kids.
Krillin also remains a
back-up character. Anyway,
Gohan recieves his martial arts training from
Piccolo, which actually consisted of just being left in the
wild to try and
fend for himself.
Gohan gets guff from his mom for slacking off in his studies, but this usually only happens when he's out trying to save the earth. Gohan has a power, much like his father, that stems from the desire to protect those weaker than himself. Case in point:Whenever one of their friends gets hurt, you'll notice that they, Goku or Gohan suddenly have a lot more energy at their disposal.