Quarter Note

1 beat

 Quarter Rest

Worth 1 beat of silence

 Half Note

Worth 2 beats

 Half Rest

Worth 2 beats of Silence

 Whole Note

Worth 4 beats

 Whole Rest

Worth 4 beats of Silence

Eighth Note

Worth 1/2 beats

Eighth Rest

Worth 1/2 beats of Silence

Sixteenth Note

Worth 1/4 beats

Which rest is worth:

4 beats?

2 beats?

1 beat?

1/2 beat?

Sixteenth Rest

Worth 1/4 beats of Silence

Eighth Note Triplet

Worth 1 beat

1                 1

(TRI-pl-et)(TRI-pl-et)

Quarter Note Triplet

Worth 2 beats

2                  2

(TRI-pl-et)(TRI-pl-et)