This resource from Khan Academy provides a lesson about the Electoral College. This lesson is intended for students taking high school or college level American Government and Civics courses, including the AP Government course.

In a nutshell, you can find out the problems the new nation had under the Articles of Confederation and the process resulted in a new constitution.

One word can sum up the Constitutional Convention of 1787 - compromise. Find out which compromises were made and by which groups of people and/or states. This expansive site includes background on the convention, primary source...

The Three-Fifths Compromise that was presented at the Constitutional Convention resolved the issue of counting slaves towards the population in regards to representation in the House of Representatives.

The Commerce and Slave Trade Compromise was reached at the Constitutional Convention by stating that Congress could not prohibit the slave trade until 1808, but that any imported slaves could be taxed.