Rebecca is right. But I believe "school" used as a verb, is a popular slang in the US that has many meanings. "To school somebody" means 1) to strongly defeat during a competitive activity / to win at something by a large margin: "Man, we schooled them!" ("we" strongly defeated "them") "I got schooled playing soccer today." ("I" was strongly defeated by someone/people during the soccer game) It can also be said as "to school somebody's ass": "Man, I schooled your ass in laser tag yesterday!" 2) to tell a person about; to try and teach or educate a person about: "Why're you trying to school me on music? I know all about it!" "She's gonna school us on algebra today." Remember, "school" used as a verb is a slang and is thus regarded as informal. Do not use it in formal situations!

I school you in some Mario Kart! <-- incorrect

Hi, you can teach someone but you cannot school them. School is a place where the teaching is done. For example, all children go to school so they can learn. Example: I go to school so that you can teach me. Hope this helps.