Everyone is most definitely allowed their own opinion. As I stated, I understand order of operations. However,I think telling someone it could be part of why they can't get a job is over the top. It's one math skill. My point wasn't in debating PEMDAS, nor in discussing "parlor tricks". it was to point out that maybe some perspective should come into play. By the way, in your school, I'm sure I'd be viewed as the fluff teacher; since I spend my day teaching science and social studies. However, at my school, I'm viewed as a valuable member of the staff and those kids do more thinking, problem solving, writing, collaboration, reading informational text etc with me than the ELA teacher. And they will be much more prepared to be well rounded citizens.