A dotted note is a special kind of musical symbol that tells you to hold a note for longer than usual. It looks like a regular note, but it has a little dot next to it. This dot makes the note last for one-and-a-half times as long as a regular note. So if you had a quarter note (which is worth one beat), and you put a dot next to it, it would last for one-and-a-half beats instead. It's like adding a little bit of extra time to the note. Kind of like how you might add extra frosting to your cupcake to make it extra yummy!