Hi Brian, this is my first year using this framework, so the kids and I really are learning together. We did something similar with English last year, so students were familiar with the process, but nothing really worth sharing as far as portfolios go. Have you read Andrew Barnett’s post:
How to Create a Gradeless Math Classroom in a School That Requires Grades
Students determine their own grades through self-assessment and a conference with the teacher In the years leading up to…
He is basically doing the same thing as me, just coming at it from a different angle. He shares far more detail than I have. Good luck, sorry I can’t be more help!