I have a huge pet peeve regarding the use of wrong words when teachers are describing things. As a professional I really should know what I am talking about. I would not go to a mechanic that called the steering column a "pokie stick". Some of the most egregious offenders are: Center of levity. No such thing. Just say lift your sternum. Centering nob. Sounds ridiculous and gross. Just say C1 and C2. Any phrase that starts with "it's just kinda like..." It is NOT "just kinda like..." it either IS or it ISN'T. And as a teacher I should know that. Float. But we don't... so what ARE we doing? One of my favorite time periods in my career was the years spent coaching at MIT and Yale. Some students were horrified when another student corrected my physics or anatomy. I, however, was rather happy to learn a the correct terminology and definitions. Anyone else get irritated by inaccurate descriptions of the body or physics?