Here's my learning for today, although I learned a lot just getting a picture on here and uploading it. (Once I added a USB hub it was a snap.) Open the LXTerminal and type setxkbmap -layout us. The LXTerminal is pretty fancy in that you can even get a right click menu on it (to copy from and to).
Here's my source: http://how-to.linuxcareer.com/linux-command-line-basics-for-beginners-part-3