What are the main principles of structural linguistics?

1 language is not learned by repeating after a model
2 the teacher takes what they say into consideration and works with the students to help them overcome negative feelings which might otherwise interfere with their learning
3 the original and principal reality is not an isolated fact of a given language, but rather the language as a system
4 students must give the teacher their attention in order not to miss what he says.
5 students  should be  engaged in a great deal of meaningful practice without repetition