It was an overcast and humid day. Dad made it very educational. We quickly passed through the periodic table chapter, I couldn't possibly recite it yet, so why waste time? Next came forces and motion. I learned about concepts like frame of reference, velocity, inertia, and acceleration. Everything was fine until Dad zeroed in on acceleration. It's a big concept in math, too, which I can’t handle well. Unlike linear functions, I really don’t know what to do with things that change exponentially. It's not a stereotype, just an observation: none of my playmates are good at it either. Maybe that's why we get along so well?