My mother's folks taught me how to make pretty things, how to make music together as a family, and how great food tastes that's grown in your own garden. Her mother also gave my parents exercises to help me learn to speak well.
My father's dad died when i was five and I don't remember him. His mother taught me that card games (and by extension, board games) can be fun family events, and how to walk and appreciate dogs. She taught me that you can reupholster your own furniture and, by extension, make other things for your home, instead of buying them.