Tap out patterns to send a message!
Mastering Morse Code means learning the unique pattern for each letter of the alphabet, and each punctuation mark. Being able to "do" Morse Code means that you tap out patterns to send a message, and decipher the taps to understand it.
Use the tutorial (Beginner, Intermediate, Advanced) to teach yourself the patterns.
With all the talk about the message from the Titanic, students might want to investigate this further.