I give each student these forms to hole-punch and put in their 3 ring binder that they have. You can keep them in a data binder or folder as well. After each assessment over the standards (some of my assessments include more than 1 standard), I have the students color in the block that matches that standard. This allows me to see which standards I need to intervene on for each student. (I also record the standards in my own data binder for each kiddo, in case they lose their sheet.). The students love to see the standards colored in, because they can see how many things they have mastered.
These are only the mastery coloring sheets to go with whatever assessments you may use. There are sheets for each of the 5 domains in 6th grade Math.