Create or find a classroom resource that teaches students about creating strong passwords, passcodes or pass-phrases.

This website tells you how secure your password is. Using this as an introduction activity on how important it is to choose passwords that are complex enough not to guess, but still remember. The teacher can use different examples, making them more complex as they go to show how the difficulty of guessing the password goes up.

https://howsecureismypassword.net