Your assignment is to complete a rough draft of the definition essay, the prompt for which (from Springboard page 60) is as follows:

• Your assignment is to write a multi-paragraph essay that defines your interpretation of what it means to be an American. This essay should use the strategies of definition and different perspectives from the unit to help you develop a complex and thoughtful definition. If possible, incorporate an iconic image into your essay.

Goals are to demonstrate understanding of the definition strategies and ability to thoughtfully consider a complicated concept from multiple perspectives.
Exemplary Work meets the exemplary criteria on the rubric (page 61) and, in particularly, effectively uses evidence.

There is a How I Would Do It post for defining abstract concepts on Lydonteaches.com. 
It should not be used as a direct model, but may be useful for this assignment.