Mrs. Hutchinson noticed the kids were gone and remembered it was the twenrty-seventh so she "came-a-running". She shows warmth and excitement by rushing to the Lottery so she doesnt miss it.
During the drawing of the lottery the tone is tense. Since we do not know if the card Tessie pulled has the dot until they all open them we're left with a myserty. Then when Bill Hutchinson shows her card we know something bad is going to happen.
The scene where they're throwing the rocks at Tessie is horrific. When the narrator tells us " A stone hit her on the side of the head," this tells us that she is dead.
The black dot is a symbol for death. Seeing this dot in the lottery symbolises that you're life is going to be taken for the sake of over population.
When Bill Hutchinson went over to his wife and forced the slip out of paper out of her hand this creates an agressive image.
The entire concept of The Lottery is a metaphor. Instead of using tradional ways to manage population, this story compares it to the drawing of The Lottery.