Intervals are way to discuss the distance between two notes.  If the notes are both on lines with one space in the middle or both on spaces with one line in the middle, the interval is called a third. A fourth will have one note on a line and one note on a space. If you put your pencil tip on the first note, call it one. Move to the next line or space, call it two. Move to the next line or space, call it three. Move one more line or space. Your pencil should be on another note. If so, you have just discovered a fourth. Visually, it looks one line or space bigger than a third. Try it!

Print the Third or Fourth worksheet.

Write 3rd under the thirds. Write 4th under the fourths. (2 points)
Begin with the letter B, C, D or E. Label all of the following notes with the correct letter. (3 points)
Begin with the letter G. Label all of the following notes with the correct letter. (4 points)
Start with the note that would be correct for your clef. Play the exercise. (5 points)

Yes, you can submit it more than once for extra points. Bring it to your next lesson or submit by email.