I don't know about you, but being a Middle School Math teacher I've constantly looked around for some sort of template that I could use to easily organize differentiated flex groups for Math. This template offers an organized layout for topic, standard, number of students, what the flex group data is based on, and space to outline the assignment, organize students into three groups(maximum of 24 students), and annotate notes based on the groups progress.
If this does not suit your needs, I also have an editable Word Document version in my store. I hope this helps! If you have any recommendations, please comment on this listing.