1. Today teachers are not allowed to physically punish their students. It is also different in that students today are more advanced and further educated whereas students in the movie were illiterate.
2. Students are still expected to behave and listen to their teachers. Teachers are still given instruction by higher authorities, and have assignments they must give students, like how in the movie they were supposed to read the textbook.
6-a. The children were very limited in their previous knowledge and they sometimes misbehaved when Mr. Conroy tried to use teaching methods that were fun.
6-b. He had roadblocks with his coworker because she disagreed with his teaching method and wanted to strictly follow traditional methods rather than making the kids excited to learn.