In math class, I always hated how they made you do things the hard way first and then after weeks of struggling said, “but you can do this in your head if you just do it this way, now let’s move on”. It’s not like I understood the concepts until I was applying them the next year anyway, why not let me do it the easy way to start with. *shakes fist at math teachers, all of them*
This girl did something about it and found a simpler way to describe triangle inequalities.
Not So Fast 