Beowulf and Linux Clustering

[voca_tech]

I'm not sure that this is in the correct forum exactly, but I am in need of some serious help with my computer operations class! I am a high school student shooting for my A+ certification and I can't find anything about how to set up a Beowulf Cluster or any other type of cluster on a Linux-based system. I'm slightly unfamiliar with the workings of Linux and I would really appreciate any help someone could possibly give me.