I will be entering a secondary master's and credential program next year, which will enable me to teach either middle school or high school once I finish. The highest grade level with which I have ever worked is seventh, but I am potentially very interested in teaching high school. What are the most significant differences between middle school and high school? I have never worked with HS students, so I am very curious. I imagine that much of them have to do with HS students being older and more cognitively developed. How is behavior management different?