To begin with, the document provides greetings and introductions from various individuals. It then defines a descriptive paragraph as a form of writing used to describe attributes and features of people, places, or items. The document lists common signal words used to structure descriptive paragraphs such as "to begin with", "another", and "in addition". It provides an example descriptive paragraph about the loggerhead turtle, describing its physical characteristics, habitat, diet, and conservation status over three sentences. The paragraph closes with a greeting.