Meg has just finished covering her last main point in her presentation. she transitions into her conclusion by using a reference back to her introductory story and then she thanks the audience for listening. does this describe an appropriate conclusion?

No, Meg does not include the summary of her point before concluding. Because the summary is the most important part of the presentation. It is an opportunity to leave the last impression on the audience. At one level, the concluding remarks of a summary are usually what is sticks in the mind of the audience. They are the short and condensed and short version of the presentation. If someone missed the presentation and only heard the presentation and in the presentation only heard the summary then they would get the essence of a good idea about the summary.

Tell the audience that you are summarize your presentation. This sets the context of the summary and prepares the audience members and audience members will conclude the remarks.