I think raw edge applique is easier than needle turned applique. I can't do a lot of hand work so needle turn isn't for me. Have fun at your class.
http://www.youtube.com/watch?v=qlPECmbwSOc
This is a video of raw edge applique.
http://www.roserushbrooke.com/how-to-applique-1.html
This is a needle turn tutorial.
I found both of these by doing a search here on the QB.
If you search both topics you should find lots of help.