Here's a little video on using Telestream Wirecast from Sterling Teaches. Sterling himself is a Technology Education Teacher, who is passionate about learning and teaching.
With Wirecast, you can stream multiple live cameras while dynamically mixing in other media such as movies, images, and sounds, and adding production features such as transitions, built-in titles, chroma key, virtual sets, and live scoreboards. Wirecast is ideal for broadcasting professional-looking live internet shows, news, online gaming, sporting events, concerts, church services, corporate meetings, lectures and much more.
You can see more YouTube videos from Sterling Teaches here.