GRRR WHAT IS THIS MOVIE!!?

i watched it the other day and i cant remember the title and it is seriously bothering me!!

It's about this science teacher and the kids don't really like him because he is boring. the teacher is the protagonists father. the kid goes to the school with his dad which i think is a bad idea. Then this new teacher comes and i think his name is Mr. D He is really cool. He is the new history teacher. He has a leather chair that swivels. I remember he would "nuke your moon pie" and was really cool as i said before. I remember the art teacher has a crush on Mr. D. Everybody loves Mr. D except for the science teacher (the one i mentioned before) Oh yeah, Mr. D would ask "how much time do we have?" and the kids would answer "not enough!" I get why he asked that now. He had cancer. The science teacher wanted to be cool like Mr. D. He brought in a lung and showed it to the class. then when Mr. D asked for chalk he saw the lung and got scared. So the science teacher wanted to find out Mr. D's secret and followed him for the whole day. The science teacher finds out that he has leukemia. Then the science teacher follows Mr. D home and some gang writes "b*tch boy" on his car. in the end i remember a basket ball game and the team was a bunch of losers. Mr D comes in through the back door and takes his picture with the team.

So here are my questions:

what was the movie called? and

did Mr. D die because i never got that.

thank you so much!!