Any knowledge you bring to the table can contribute to the 'education'. If you didn't know about that cutting edge technology.....you do now.Not complaining just wondering what it has to do with home education.
If you want to help educate your child 'be there now' when they ask questions, 'be there now' to help search out the answers, 'be there now' to help him or her learn on how to find those answers.
And allow their natural curiosity and imagination to flower.
Don't teach them WHAT to think, teach them HOW to think. It will serve them for the rest of their lives no matter what life path they choose to pursue.