Math class always seemed light-years away from what happens in the real world. Quadratic equations, isosceles triangles, radical equations—forget it! We wanted to solve problems that we'd face in real life, like whether or not our hot summer jobs would make us more or less likely to get a date. But now, Jessica Hagy proves that all that chart-drawing and stats-calculating actually does apply. This ingenious blogger puts good use to her note cards in order to "make fun of some things and sense of others" in the measurement of everyday relationships. Scroll through to discover: