Flashbacks to being in elementary school in like 2004 and they had to teach us how to use calculators. "Had" is a strong word. They literally spent an entire day of math one day telling us how to use a normal non-graphing calculator. I distinctly remember hearing "don't hold it like a Gameboy, don't use your pencil to press the buttons," and even then thinking how useless of a day that was. They wanted it to still seem so important. Remember, you won't have one of these in your pocket every day.