I am known as the instructor who never gives a straight answer. (even my children say this about me)I consider this a compliment. What typically happens is that the student will ask me a question, usually during a lab and really just wants me to give them the answer to a required lab question. I always come back with probing questions for them, to lead them to their answer. Many times they know the answer but just don't have the confidence to put down on paper. They may ask something like "why do lean mixtures cause misfires?" I will respond with something like "what are the three requirements for combustion?" When they answer this simple question I move on to "what if 1 of the 3 requirements is missing?" Student says" I guess no combustion" I say, "without combustion in a cylinder what do you have?" hopefully at this point the student comes up with " a misfire". So they know the components of the correct answer but are not confident enough to draw the right conclusion and put it down. They usually have an idea of what they think is right and are basically looking for me to pre-grade their answer. I attempt to make sure they are confident enough with their answer to put it in writing.