K-5 ideas

Ask students to work in groups to develop a few passwords for an imaginary kid - Nicky, with mom Alyssa and dad John and a dog Brownie. Nicky will use the password to access a social media site like TikTok

• category 1: An easy to remember, short password - they should write it down and discuss how easy it would be for someone else to guess Nicky's password. They can make any assumptions they want about Nicky, e.g., he likes sports so his password uses the name of a famous sportsman

• category 2: A hard to remember, random password - they should write it down and discuss how easy it would be for someone else to guess Nicky's password.

• category 3: An easy to remember, hard to guess, long password - using English words and items meaningful to Nicky. They should write it down and discuss how easy it would be for someone else to guess Nicky's password.

After they have the three password, each group should test how long they would take to break by inputting them into https://www.passwordmonster.com/. If their category 3 password took fewer than 1,000 years they try to come up with a new category 3 password.

Each group shares their category 3 password. Other students try to memorize as many as they can without writing them down. The takes notes of all category 3 passwords. 

Each student writes down what they remember from category 3 passwords of groups other than their own and submit to teacher.

The teacher checks. The most remembered password wins, but only if it takes fewer than 1,000 years to guess!