If your group is creating a new article, it makes sense to get a first draft ready in a sandbox. That way, you can get a handle on some of the article structure, or develop a lead paragraph that contains everything you want to tackle.

Write an outline of your topic in the form of a standard Wikipedia article's “lead section.”

A “lead” section is not a traditional introduction. It should summarize, very briefly, what the rest of the article will say in detail. It should include important, broad facts about the subject. A good example is Ada Lovelace. See Editing Wikipedia page 9 for more ideas.

Note that not all topics pass notability guidelines on Wikipedia, so go over guidelines here before doing too much work.