My biggest concern with this type of curriculum would be if by charter you mean that you are then obligated to follow their guidelines and complete all the material they require. This was our problem with K12 in the sense that there was a lot of redundant "busy" work IMO. Because we did it independently I just edited out anything my DD already knew or what I thought was tedious drilling to fill time. The ELA that we used was a very comprehensive course. The only other thing for me was the constant back and forth between computer, book, computer, workbook that makes up the lessons. Take all this with a grain of salt in the sense that it has been almost four years since we used it and hopefully some who have used it more recently will chime in.
I requested materials from OdysseyWare about a week ago, still waiting but curious since they were mentioned on another site.
