Look at the brainstorming web.

An example of a brainstorming web using objects, special days, and highs and lows.

A brainstorming web can be an important tool in narrative writing because
it helps the writer determine the structure of the piece.
it helps the writer think of different topics to write about.
it helps the writer decide on a beginning, middle, and end.
it helps the writer formulate a thesis statement.