Tim has been my mentor throughout this process. We have spoken via Skype or telephone a few times, have emailed each other on numerous occasions, and even collaborated in Google Docs. I am so grateful for his willingness to help this "newbie" to the world of mathcasting.
If you're attending MACUL, I hope you'll attend my session and say hello (there will be door prizes too!). For now, here's a sample mathcast to whet your appetite.