Playing a snowboarding video game — after having gone snowboarding once — was very helpful for me. Seeing how the avatar lifted the edges of his board while turning helped me understand what I’d been doing wrong and made me a much better snowboarder the second time around.

Watching YouTube videos would probably serve a similar purpose, but the interactivity of the game made it especially useful for me (besides, YouTube didn’t exist when I learned in the late 90s). For the record, I played 1080 Snowboarding on the Dreamcast, may it rest in peace. https://en.m.wikipedia.org/wiki/1080%C2%B0_Snowboarding