"He turned a teacher " or "He turned teacher"
"He turned a teacher " or "He turned teacher" ? Which sentence is correct?

Question

Answer

Do you mean "he turned into a teacher"?

Answer

If you are talking about someone who studies and goes into teaching, you may want to use 
"He became a teacher." 
However, if you are talking about someone who talks to a teacher, you would want to say, 
"He turned to the teacher." 
I hope this helps - source: I am a native English speaker!