Stars are awarded for good performance in class and afters assessments.
There are silvers and gold stars.
Main use for stars is in the booklet.
Sessions TrainedHere you get silver stars for 8 and 18 sessions trained and gold for 24. This is from the last grading or first started.
Kihon, Kata and KumiteFor each grade there are things you need to learn for Kihon (Basics), Kata (Set Forms) and Kumite (Sparring).
for progression these have been split into three areas:
Here you get assessed for picking up the new things you have to learn.
DevelopingIn this part you are building your skills.
ConfidentAnd here you are polishing up ready for grading.