I try to determine why the students number of quetions is higher than other students. If it is attention seeking behavior with no real relevance to the subject matter, that is handled after class in one to one discussion. If the student has anxiety about the subject matter and questions posed reflect that they are in fear that they haven't understood the content, a non-graded assignment or worksheet might be helpful. If the student has great and relevant questions that should or could stimulate group discussion I allow two to three questions then remind the student of consideration for everyone's learning experience.
