This one is a bit different from the others. The first page contains the clues that are to be cut out and placed inside the plastic eggs, and the second page is a worksheet that includes multiple examples of all of the notes of Middle C Position, notated on a grand staff.
When the student finds an egg and opens it to reveal a specific note of Middle C Position (spelled out in words, such as "bass clef A"), he identifies all of the bass clef A's on the sheet by writing "A" near each one. The student continues searching for eggs and identifying notes until the entire sheet is complete, or until you run out of time :) The sheet is placed in a plastic sheet protector so the student can write on it with dry erase markers. You simply erase it and use it again with another student.