If you are still using the 2nd Edition (2014 - brown cover), then you might prefer to use this collection of resources. All of the lesson numbers shifted for the 3rd Edition, so items with corresponding lesson numbers, like Lesson Plan Sources and Core Chart Worksheets, will not align to the old edition. Also provided here are the revised correlation charts intended to replace the outdated charts found in the 2nd Edition. These charts align the exercise items of the 2nd Edition to the updated APUSH curriculum guide published by The College Board.