In history classes, I always here about the 10% plan by Abe Lincoln and the 50% plan by Radical Republicans, but were there other plans by southern states? Were there other plans by northern politicians that aren't as widely known?
After the War, many Southerners wanted a return to pre-1861 conditions, with everything the way it was except for slavery. President Johnson (a native Tennessean and all around awful president and politician) was pretty much ok with that. He granted numerous pardons to high ranking ex-Confederates, allowing them back into politics, and allowing the ex-Confederate states back into the Union. These states soon enacted "Black Codes" essentially undoing emancipation. Many Northerners were perturbed at these developments because it was if the War had never been fought, that 600,000+ Americans had died for nothing. In fact, Congress wouldn't allow the newly elected Southern representatives into the building.
Moderate Republicans (the majority of the Republican Party) tried to work with Johnson but he was so stubborn that he drove them to the Radical Republicans, which was part of his undoing. This lead to Congressional Reconstruction. Congress divided the ex-Confederate states into military districts, ripped up their state constitutions, told them to write new ones and wouldn't let many of the men Johnson pardoned to participate in government.
Sources: Eric Foner A Short History of Reconstruction
Richard Zuczek State of Rebellion
Wolfgang Schivelbusch Culture of Defeat