Children can learn before they even begin speaking.
I'd like to say that I started my daughter's education when she was only five months old. I don't think homeschooling just includes grades kindergarten through twelfth grade. It begins the second you start educating your children at whatever age that may be.
One of the first things I did with my daughter was purchase a book that only had one object on each page. For example, one page would have a ball on it while the page opposite it had a picture of a puppy dog. I'd show my daughter the pictures one at a time and point to them. Then I'd help her point to them. It wasn't long before she could point to the correct object herself. This was long before she could even verbally form words.
