Class or Coffee Shop

Today my class was a disaster, the lecturer, Ms. S was teaching a new chapter. When I went in the class it was full.. so i thought that the class will be fun.. but things later starts to go wrong. First Ms. S wrote the notes on the whiteboard, then we, the students copy the notes that is being written on the whiteboard. After all of us finish copying she started her lecture. A few moments later, some students began to ask questions but the questions are craps. Then the whole class started to make noise.. and Ms. S look like she got annoyed by them. I was thinking that it was like the whole class had transfer into a coffee shop.. I was sitting in the first row also can't stand the noise and the stupid question ask by them..
Ms. S was forced to answer their question and repeat the lecture again and again. When she reach half of the chapter, they ask from a break.. (For god sake, she didn't even teach that much) They break for about 30 minutes and Ms. S have to wait for them to return. Haiz.. the class was a mess today.. Poor Ms. S... I hope the next class won't be as bad as today.