This clip resonates with me something fierce. As the father of an elementary age student, I can attest to the utter confusion and skepticism Mr. Incredible expresses in this scene. It goes:
Dash: That’s not the way you’re supposed to do it, Dad. They want us to do it this way.
Mr. Incredible: I don’t know that way! Why would they change math?
Dash: It’s okay, Dad. – Math is math! I’ll just wait for Mom to get back.
Mr. Incredible: What? She won’t understand it any better than I do…