Thank you for your suggestion. I can see how this would work for the example of the oven temps, and I'll use it to address that specific issue. However, there are more situations that arise in the classroom every term than I could possibly address in this manner. My question is more about how to encourage the students to think for themselves. I know they can come up with the right answer if they think about it, but instead they want me to give them the right answer. So how do I encourage them to approach situations in a logical manner? Thanks in advance.