Guidelines and details from a prof are all well and good, but often it's examples from your peers that are the most useful models for an assignment.
If you're still working your way toward that coveted 5 point mark, reading through these examples may help. :) (Some of your peers were kind enough to grant permission to share their writing.)
clxudia: Pre-Class Response #3 (Lysistrata)
Mai's World Civ: Response to: On the Customs of the Persians
The Trojan Heel: Pre-Class Response: On the Customs of the Persians
Rach For World Civ: Herodotus: he wrote down us
Potato Historian: On the Customs of the Persians (Herodotus)