The Unit Is Divided into Five Sections I.The Articles of Confederations II.The Constitution and the Federal System III.The Three Branches of the U.S.Government Checks and Balances IV.The Bill of Rights V.The Political PartiesThe Unit Is Divided into Five Sections I. The Articles of Confederations II. The Constitution and the Federal System III. The Three Branches of the U.S. Government & Checks and Balances IV. The Bill of Rights V. The Political Parties