Amazingness of math

Today in my math class we were learning about the substitution method for solving for variables. I learned this about four years ago... I finished the assignment that was meant to take the whole hour in about 5 minutes. I was bored so I started thinking about ways to make this more fun. I thought of matrices. So, I started calculating 3x3 and 4x4 matrices... My teacher came over and when she saw what I was doing, explained that we wouldnt be learning that until next year. So she gave me some hard practice problem and I spent the whole class doing work by myself:) it was awesome