Considering I just took math again for the first time in 8 years this was extremely funny.
For the people who thumbs this down and feel the need to point out that they have seen this many times or that it is soooo old; why don't you just move on if you have seen it. Do you not realize that NOT EVERYONE has seen all of the same things you have? Have you never come across something yourself that was old but it was still funny to you because you hadn't seen it before? It just seems rather petty to me that you feel the need to tell everyone that you have seen it before.