I have some 10 weekers also. They are in the shed with a very small completely enclosed run attached. This was to be thier temporary home, but they grew fast and the  coop isnt ready yet.
Anyway, what I'm trying to say is, we have had to let them free-range for the past few weeks. They mostly stay close to the shed, because they also have the deck to play under. But, my little 6 pack of hoodlums have wandered all over our acre yard, including out front. They have explored the edges of the neighbors yards.
They come back to the shed as  soon as it starts to get a little dark out, and one goes in the shed, and starts calling the others till everyones in.
When I first  started letting them out, I tried to "train" them to come to me. I would go out every half hour or so, taking with me a plastic bowl with a few cheerios  or small non-messy treats, and shake the bowl, and tap on the side.
Then I'd throw a few treats down to get them running, while saying " Here Chicky".
So now, I can either shake a bowl, or tap on it, or call and they will all come running.  Unless, of course, they are too busy doing Important Chicken things..