How did Kakashi first evaluate Team 7?

The bell test. He gave them one night to prepare, then faced three students in combat — requiring them to take bells from him. The real test wasn't whether they could fight him (impossible) but whether they would work together. They didn't. He sent them to eat lunch and think about it. Then he passed them — because when Naruto was going to be punished for eating, Sasuke and Sakura shared food with him anyway. That small act showed the thing that mattered.

How did Kakashi approach each student differently?

He trained Sasuke's Chidori personally and one-on-one. He recognized Naruto needed self-belief more than technique, ultimately facilitating his connection with Jiraiya. He pushed Sakura's intelligence and later recognized her healing potential. He didn't apply the same method to all three — he read them as individuals.

What was Kakashi's relationship with Naruto specifically?

Complex and sometimes neglected by the narrative. Kakashi believed in Naruto more than most adults in Konoha did. He defended Naruto's potential when others dismissed him. He also recognized that Naruto needed relationships beyond Kakashi — specifically Jiraiya and later Minato's memory — to access his real power.

How did Kakashi evolve as a teacher through the series?

By learning to let go. He was deeply protective of Team 7 but had to accept that his students would face situations he couldn't control or save them from. By Shippuden, he's less a teacher and more a partner — fighting alongside them rather than above them.

What is Kakashi's lasting legacy as a teacher?

Three of the most significant ninjas of the next generation: Naruto (Seventh Hokage), Sasuke (greatest ninja of his generation), and Sakura (strongest kunoichi of her generation). The score speaks.