Out of all my years of school , my Junior year precalculus teacher is by far the worst teacher I ' ve ever had . She was absolutely insane . She never followed the curriculum that she was supposed to and therefore taught us things that we didn ' t need to know . Because of this teacher I nearly failed my final because she wasn ' t allowed to make the final . The best part was she knew this and openly admitted that she was teaching us things we didn ' t need to know . She would say things like I wish I could make the final because I would totally put questions like this on it . Oh well . But despite being the worst teacher ever , I ' m actually really glad I had her , because she was absolutely insane . She said the craziest shit and I am so happy I was there to witness it .