Currently the Teacher badge's description is:
Answer a question with score of 1 or more
This is ambiguous. It can either mean "answer a question and get a score of 1 [on your answer]" (the correct interpretation) or "answer a question which has a score of 1 or more" (i.e. the question is positively scored at the time of answering).
Could we change it to something a little clearer? Say, for example:
First answer with score of 1 or more
This would bring it in line with the Student badge.