Music activities & games can be a great way to teach group lessons! These activities are mainly focused on theory.
Note naming flashcards
Draw notes on the treble / bass clef on sheets of paper (or find printable ones online)
Flash the notes in front of your students and have them name them
You can also turn this into a competition for group lessons seeing who can shout out the note names the fastest!
Games/resources for Note Identification
Name that Note - online note flashcards, has 3 different difficult levels
MusicTheory.net - simple note identification, can be customized
Note identification with reading music - this game has a keyboard and sheet music for students want to get better at reading sheet music
Pirate treasure hunt:
Print & cutout these various music symbols here - stick these symbols on the walls around the music room
Give your student a copy of this answer sheet
Have your student search for the music symbols corresponding to the terms in the answer sheet & have them note which pirate picture goes with each symbol
Kids draw a line from the written symbol name on their answer sheet to the correct pirate picture.