I don't have an older one to deal with, but I let the little ones lead. I keep tons of books (I have well over 500 at this time and I keep buying) around for them, and lots of basic toys (puzzles, blocks, legos, board games, pattern blocks, dollhouses, trucks, kitchen etc) for them to use their imaginations. they don't have any electronic toys, and we don't watch tv, aside from a 10 minute dvd at night. they love to do crafts so when they were 2 and 3 I did The Learning Box Preschool with them. it only took about an hour a day, when we did it, but they really enjoyed it. I loved the fact that everything needed for the crafts was already there! they still get quiet time/naptime each day and they get to bring a few books with them. they're allowed to bring books in the car too when we go for errands.
they always loved to sit on the couch, cuddle and have me read to them. so we read alot. sometimes I'd let them help me finish the sentence, and somewhere along the line between 2.5 and 4, they taught themselves to read. very well. so I keep buying lots of books- especially non-fiction- and they just learn. I've learned to listen at what interests them for that week/month and follow through more in depth for them. Their interests are all over the place, but they are having fun and learning, and that is all that matters to me at this age. I figure there is plenty of time for structure later. this is the time for play. (I think they think that reading is just another form of play!).
so instead of teaching Tazzie math, just play some math type games with him. let it all seem more like play than school! he is still a Little!
good luck!