The thing is that u don't remember the mang well anymore,maybe bcause it wuz part1.they all had the tree walking exercise,but kakshi never taught naruto or sakura anything,only sasuke was taught extensively by kakashi.and the reason I aint including sakura is because kakashi WUZ NARUTO'S FATHER'S STUDENT
Sasuke wasn't taught extensively by Kakashi. He only trained Sasuke separately during the Chuunin exams, while Naruto was trained by Jiraiya and Sakura was left on her own.
It doesn't matter whether Kakashi was the student of Minato or not. Kakashi is in the first place a teacher and he taught his team well. I think you should go back reading the first part again because then you'll notice that it isn't until the Chuunin exams that Kakashi spent a bit more attention on Sasuke than he gave the others.
The rest of the time they all got equal attention. You seem bent on seeing Kakashi as the bad guy in this situation, while he isn't. Objectively seen, they all got equal attention until the Chuunin exams where Sasuke got taught by Kakashi for a while and Naruto received training of Jiraiya. It's not like Naruto didn't get any training at all.
And in Shippuden Naruto was extensively trained by Kakashi. Why? Because he wants Naruto to survive. If he really didn't care about Naruto like you seem to want to believe, then he wouldn't have rescued Naruto during the fight with Zabuza, he wouldn't have given Naruto special training so that he could get stronger in order to survive Akatsuki's attacks and Naruto wouldn't have improved under his training sessions.
You want fairness for the students? Well then complain about Sakura for not getting any special training. She is still his student and therefore should have received special training as well. Yet, she didn't while the other two definitely got special training sessions. You can't be on Kakashi's case for supposedly not treating Naruto fairly while willing to ignore Sakura's case. That isn't particularly fair of you now, is it?
It is like it is: both Sasuke and Naruto got their own training sessions, designed to fit their goals and elements with Kakashi. Yes, Kakashi saw traits of himself in Sasuke and not much in Naruto. And? He still taught both of them.