Tiffini,
For the Fallacy Detective exercises, I believe there is a note in the grading portion of the guide to the effect that since this is the student's first exposure to the fallacies that as a parent we are to allow our kiddos access to the answers to check as they complete their exercises and allow for leeway in any grading. So, for those exercises, I just checked them off without giving a grade. My boys needed help with these, as they got many answers wrong for quite awhile! However, once we got to Art of Argument, I did more formal grading (and they did better by then)!
As far as the Expedition Journal goes, for my own boys I made sure that they met any standards set forth in the guide for each assignment. If it wasn't completed to my standard, they corrected or redid until it was up to standard. I expected my boys' Expedition Journal to be an 'A' for them or I did not accept it. This may differ for different families. I have just always expected work like that to be done to a high standard. I even expected this in my classroom during my public school teaching days. So, some kiddos just had to redo more than others.
They do learn not to just slop things down on the page this way though!
As far as the maps go, again since they are done freehand in pen on blank paper, I gave a pretty wide berth as to what I accepted. I did not accept a mess or crossing out of any kind, but I did leave some leeway for exactness. I did want the countries to look the correct shape though and be in the correct proximity as much as possible. This to me was a '+' or a '-' in my checking system.
As you can see there is not "one" right way to keep grades. I just do what is comfortable for me, and I try not to make extra work for myself in the grading.
Blessings,
Carrie