@hammit39
I believe there is a place for all sorts of instructional techniques to help students learn content: lecture, group activity, peer-to-peer interaction, and student evaluations. Without knowing the technique you use when the student disrupts with questions, would it help to conduct more small-group or peer-to-peer activities? Perhaps that way, the disruptive student would not hold up the entire class at once, and perhaps a hands-on activity would give her opportunities to try out answers.
