Last night I updated my students concept scores and I've decided that next year I need to have the score in the grade book be the last 2 scores on on each concept. I have many students who have the mindset that they can take a test and forget it and they are not studying for these quizzes. It's too late to make the change now and it wouldn't matter for the last 3-4 concepts anyway because we're almost out of time.
I am really happy though, when I look at their grades and now I know that the grades mean something. The grades are definitely lower in my Geometry class so, as I suspected, I was guilty of grade inflation.
Another thing I am pleased with are my students who are achieving mastery on almost every concept and never did well in math before. My general observation is this: my Algebra class is doing better than my Geometry class. I think this is because kids got on the advanced track by being game players and they didn't really know how to learn. The Algebra kids feel like they have a way out and they may have felt trapped (and probably stupid) because they were not good at the game. Now that it means something, they can do it. I love those kids.