@hingehead,
hingehead wrote:
While I'm being geeky - ever wondered why X features so heavily in Algebra?
In under five minutes it's explained via TED:
[youtube]http://www.youtube.com/watch?v=YX_OxBfsvbk[/youtube]
That is interesting!
Not to get away from the humor here, but I wish I had seen something like this video when I was a freshman in high school. From day 1 in first year algebra, I was asking "what do you mean "X" what does that mean?" I got what was to me, answers that made no sense, as in "X is whatever you want it to be" WTF did that mean, I thought. Tell me what X is, how can I look for something when I don't know what I'm looking for!?" My mind was stuck on this and couldn't move away, and from that first day I got farther and farther behind, and I got the reputation of not knowing what I was doing, and failing failing failing. After struggling (struggling is a mild word) through 2 years of the required algebra, they figured I was retarded, then then stuck me in some rudimentary geometry class, which infuriated me, since I was in regular, or advanced classes in my other subjects. Plus, I was like "what's so hard about figuring this area/this angle, etc?" Not at all equating it to the previous algebra experience, or, I think, even seeing it was the same X.
I had the same problems when I had to take college algebra, but this time the terror of X was so woven into the word algebra I couldn't see around it.
It wasn't intil I took statistics, and the instructor said, and these were his exact words "Let's say X equals the temperature at the center point of your attic". The sun came up, the birds sang, I soared and aced the class.
WHY DIDN'T ANYONE EVER TELL ME X WAS THE TEMPERATURE AT THE CENTER POINT IN MY ATTIC???!!!
I swear to God, if someone on day one had just told me X was the number of cats in a bag, things would have turned out differently.
X is the unknown my ass.