This is a video from one of my younger students classes. It is a History and Geography class, taught in English. These students are all around 12-13 and would be in 7th grade in the states. This clip is in the middle of class, while students were changing presentations. The man in the front in the red sweater is the teacher. Also, if you notice around 6-7 seconds, on the right, there is no door to this classroom. There is a half bookshelf and a large walkway. That is the entrance to the class. Outside this door, there are 3 other classrooms. This noise level is typical for this class. Enjoy!
Also, there is another entry below this one that I just posted as well. Make sure to check them both out!!