I did a presentation on "What is Gender: Beyond the Binary" on August 20, 2017. The presentation addresses the many facets of gender and its determination beyond the traditional male/female binary, including some basic broadly accepted definitions, and some of the recent science regarding medical discoveries on transgender persons.
I offer this for members to make use of in their educational efforts.
The video of the presentation and Q&A session is now released for public use. I've attached the video links and a link to the handouts for the presentation.
And yes, I did put in a big plug for Susan's Place.
Presentation Handouts (PDF. 1.5 Mb)