. >> jon kitna sounds every bit the football coach he is. having returned to the school he quarterbacked 20 years ago. >> we good? got your review packet. >> reporter: but the remarkable thing about this coach and algebra teacher is that he didn't need the job at all. jon kitna was an nfl quarterback for 16 years. retiring last year from the dallas cowboys. patrick erwin is the principal at lincoln. >> he didn't have to come home. cohave stayed in dallas and been a high school football coach and made scads of money with but something called him back to this neighborhood and to so many kids from poor and broken homes. >> i walked these same hall waste. i was here. i get it. >> when john signed on to be a math teacher here he said give me your toughest kids. and we did. >> reporter: students like rayshaun miller. >> really didn't care about coming to school. you didn't have any respect for the teachers. i just thought i was the man. >> reporter: kitna schedules early morning algebra sessions with him. >> i started learning how to do math. and

jon kitna was an nfl quarterback for 16 years retiring last year from the dallas cowboys. patrick irwin is the principal at lincoln. >> he didn't have to come home. he could have been a football coach and made clads of money. >> reporter: but something called kitna back to this troubled neighborhood. >> i walked these same hallways. i was here. highest scoring period in his school. >> this final should be you getting what you deserve. >> i've always felt like there's much more greatness in these halls and in this b mallicoat. >> your realtime captioner: linda marie macdonald. >>> good morning, everyone. it is monday, a super monday, january 28th. i'm frank mallicoat. >> and i'm michelle griego live in new orleans where the 49ers have landed. they are getting ready to face off the baltimore ravens but first we're talking all things new orleans. [ screaming ] >> new orleans can really throw a party. right now, they're not even really thinking football. it is all about mardi gras. usually, what happens is they celebrate mardi gras for two weeks until fat tuesday, february 12.