What is the plot summary in the short story the metaphor by Budge Wilson?

A student in Junior High has Miss Hancock as her English teacher and enjoys her teaching. One day, Miss Hancock tells the class about metaphors and this prompts her to write one about her mother, who is not very warm towards her family. Later, in senior high, the same student is surprised to find that her English teacher is Miss Hancock. However, Miss Hancock can't handle the more rowdy senior high class and becomes tentative about her teachings. In March, Miss Hancock steps off the curb and is killed instantly by a school bus. The student is upset, but her mother tells her to get a grip. The story ends when she writes a metaphor about Miss Hancock.