M.S.
Hi C.,
I always would get something started with my son and then when I needed to get something done I would say I will be right back I'm going to put the laundry in the dryer or put the dishes away and I will be right back. I would slowly make the time away a little longer. It worked well and I always came back so he knew he could count on my word.
Sometimes I would give him a little project to accomplish by the time I got back. He loved this because he loves a challenge.
I think the best way with kids is to a always make it feel like a game.
Good Luck.
M.