Below are the links to helpful websites and videos for government. The Youtube and Khan Academy videos deal with the Electoral College and Primaries/Caucuses. Please watch to help further your understanding.
http://www.icivics.org/
http://www.twyman-whitney.com/constitutiontest/
http://www.youtube.com/watch?v=_95I_1rZiIs
http://www.youtube.com/watch?v=OUS9mM8Xbbw
http://www.youtube.com/watch?annotation_id=annotation_286635&feature=iv&index=13&list=PLqs5ohhass_TF9mg-mqLie7Fqq1-FzOQc&src_vid=OUS9mM8Xbbw&v=7wC42HgLA4k
https://www.khanacademy.org/humanities/american-civics-subject/american-civics/v/electoral-college
https://www.khanacademy.org/humanities/american-civics-subject/american-civics/v/primaries-and-caucuses