Define the personal essay as a genre of reflection rather than pure narrative, and distinguish its purpose from that of a short story or a report.
The word "essay" comes from the French essai, meaning "an attempt" or "a try" -- Michel de Montaigne, who essentially invented the form in the sixteenth century, used it to describe writing that tries out an idea rather than proving a settled one. A personal essay is not simply "a true story about me." A story can happen to anyone and still be only a story; a personal essay uses a real experience as evidence for a claim about how the writer sees, thinks, or has changed. The event matters less than what the writer makes of it.
This distinction is the whole difference between narrative and essay. A narrative asks "then what happened?" An essay asks "what did that mean, and what does it reveal?" The college application essay is a personal essay under real constraints: a tight word limit, an audience of strangers who will read hundreds of these in a sitting, and a genuine purpose beyond the assignment -- to let an admissions reader glimpse how you think, not just what you have done. Over the next several weeks you will draft one, but the underlying skill, reflective writing that argues something true about yourself using specific evidence, applies far beyond any application.
Mastery looks like: They can distinguish a personal essay from pure narrative or report, and can identify the specific sentence in a sample essay where reflection begins.
Common stumbles: Writing a well-told story with no reflective claim and calling it a personal essay; assuming the most dramatic event automatically makes the strongest essay.
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