How to Communicate Standards?

It isn't about having standards in our classrooms, what is much more important is how to communicate such standards in our classrooms? 
First of all, teacher should be direct to the students and explicitly explain the material to the students. Second, she should be specific in telling them what you want exactly from them; you should detail things in particular way.
To add more, teacher should keep in mind that not all students are on the same track at the same time, so it is important to repeat directions to make them able to follow you. Also, because words of the teacher have a great impact on the students, teachers should be aware or eclectic in choosing their words, for example we can tell our students " you can do it", so in this way students would be motivated to work more.
At last,here is an important point to highlight on which is "modeling"; teacher should model things in front of the students because they imitate her and consider her as their role model. So if you want your students to say " thank you" you should do it in front of them.