Professora Gangster 3 (2008)

Both are about a teacher trying to help a troublesome class to find their way.

Both shows about coming together and achieving something and finding yourself.

There are some definite similarities. Shiritsu Bakaleya Koukou is kind of like Gokusen-lite, with ten times the girls and no teacher making speeches and kicking butts. There's a lot of fighting (but these guys don't seem to get pounded into the ground like the guys from Gokusen do). And a lot of running. And a lot of ragegrowling from a lot of cute guys. There are even similar themes - fighting for what's important, loyalty. Plus, Takaki Yuya from Gokusen 3 is in it. If you enjoyed these things about Gokusen, give it a shot, the episodes are only about 20 minutes.

Both are about eccentric teachers who help bring hope to children who have lost all hope. Akahan no Sensei is more realistic in it's approach, where though the teacher excited, he lives in a very real world. so nothing is sugar coated.

Both are dramas about teachers protecting students from adults and the scary world that's trying to take advantage of them at the expense of their own well being.