In "The Lottery", the black box is a huge part of the community's tradition. They use the black box to pick names for the lottery every year. The text states, "Summers spoke frequently to the villagers about making a new box, but no one liked to upset even as much tradition was represented by the black box." This shows me that even though the people throughout the community want to change the box, they can't seem to do it because the box has so much tradition.
When the kids are putting the rocks in a pile foreshadows the community throwing rocks at the winner of the lottery because at the end of the story the community sacrifices the winner by throwing rocks at them. The text states, "'It's not fair,' she said. A stone hit her on the side of the head." This shows me that the rock was in fact used to sacrifice the winner of the lottery.
Sherly Jackson creates the mood of uneasiness at this point in the story. I know this because the text states, "...and the feeling of liberty sat uneasily on most of them." This proves to me that the people that are gathered around for the lottery are not excited. They are rather uncomfortable.