I am often astounded by how slowly everything goes in class. It is like everyone is living in molasses. The answers are always carefully considered before being uttered. This is not how communication works. It is not good enough to speak correct English, you have to speak it fast.
Learning goes the same way. You need to have a steady pace, and be constantly learning. I like to say that the absolute worst language learning environment is the classroom, a room with no input, bare walls, only other students for interaction, with perhaps one or two exchanges with the teacher each session. Dismal.
Look at this kid learn. He knows how to do it.