No. American students call their teacher by Mrs./Mr. followed by their last name: "Mr. Smith" or "Mrs. White." This is polite and expected throughout all of school up until high school graduation at age 18. After high school, students are considered adults and will refer to professors at college/university either by their first name or simply "professor." Being called "teacher!" always made me laugh. It's very generic and does not have the same sense of prestige and respect that comes with "professor." American students do not usually call out "teacher!" unless they are very young.

Usually , they call their teachers by name or putting Sir, Mr. or Mrs. in front of the name . Unlike our Asians , they are okey to call by name. I know if you call like that to your teacher , it means a bit rude . Isn't it ? Different Countries , different cultures .

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The teachers in America vary in the way they approach education. Some teachers find it better to be more personal with their students by getting to be on a first name basis. Teachers like this are typically considered to be the "cool" ones and usually teach in humanities programs. Most teachers, however, keep it formal and require you to use Mr. or Mrs. or Dr.. However, it's not too uncommon for teachers and students to switch to first names mid-semester depending on how involved they are in the class.

Generally students address teachers with Mr. Mrs. Or Ms -Surname. Sometimes they will say Coach Surname if that applies as well as teacher. Small children will sometimes just say Teacher. At a college or university level students would say Professor Surname.