Yes. I'm another story of someone who's good at maths, got excellent grades in University, etc. etc. During High School I didn't study as hard, and while I kn

Yes. I'm another story of someone who's good at maths, got excellent grades in University, etc. etc. During High School I didn't study as hard, and while I knew how to do calculations with Radians, never "understood" them. One day, while in University, someone explained Radians to me much as this gif does. It took one sentence, and something I'd been working with for years without understanding immediately became clear. Why don't schools/textbooks offer this? I have no idea. But it's a shame.