This data tracker can be printed on cardstock, laminated, and displayed on the wall. After an assessment, the shapes are colored in based on a displayed color coded key. In my own classroom, I used:
Purple = 60% or below
Yellow = 61%-79%
Green = 80% or above
When the kids are re-assessed on this skill, the color can be wiped off and colored in again with the new level of mastery. This was a very visual way for the kids to see the growth over time.
If you have more than one class, I have displayed them vertically with the names of the classes above - this way the classes could see if they were on par with their peers. It's a good way to encourage healthy competition.
I also like this format of displaying classroom data as it does not use student names. By sharing how the class is doing as a whole, it creates a sense of purpose and empowerment without shaming.