You can accomplish anything with students if you set high expectations for behavior and performance by which you yourself abide.
It is very reassuring to your students that you know what you are doing.
Students want a safe, predictable, and nurturing environment – one that is consistent. Students like well-managed classes because no one yells at them, and learning takes place. Effective teachers spend the first two weeks teaching students to be in control of their own actions in a consistent classroom environment.