This card game is to reinforce the names of the lines and spaces of the treble clef. I was inspired by a game my own kids got a few months ago.
Two or more players take turns drawing the included cards. When a duck is drawn the student yells "duck" and places the card in a discard pile. If the student draws a letter than that student has to retrieve the corresponding notation that is hung around the playing area. If the student returns to their spot with the correct note within the set time then they keep all the card in the discard pile and play continues. When all notes are collected the student with the most cards wins.
I have played this with a large and rowdy group of fifth graders and even my most challenging student (one of the most challenging I have ever taught) was actively engaged!