Final answer:
The renewal of a teacher's license varies depending on the state or country, and it may be tied to the teacher's birth month or the month when the initial license was issued.
Step-by-step explanation:
The renewal of a teacher's license typically depends on the specific requirements set by the licensing authority in each state or country. In many cases, the renewal period for teacher's licenses falls within the teacher's birth month or the month when the initial license was issued. It is important for teachers to check with their local licensing authority or education department to determine the specific renewal month for their license.