This is a "STARS" checklist to be posted in the band room for young musicians to refer to throughout rehearsals. Items on the checklist remind students to look for: S - Signs in the key signature, T - Time Signature, A - Accidentals, R - Rhythms, S - Signs and Symbols. This is a great product that could be used during group and/or sectional rehearsals. It gives the musicians a guide for proper playing and performance.
This could also be something that is printed on small paper to be taped to music stands as a constant reminder for students while performing.