I'm not sure what Laura's Key is, but I'm assuming it's a story. To find the story's theme, you have to identify the plot, the conflict, and the story's use of characterization, (in other words the build-up of the character; the way the character acts) in order to build up an idea of the story's "feel." Hope that helps :)
In “Laura's Key,” a young girl experiences failure on the soccer field, but with the help of her family and friends, she finds resilience and learns that growth and improvement are more important than winning.
