Eighth graders learn how encryption turns readable information into scrambled code that only the right key can unlock, and why it keeps passwords, messages, and payments safe online, then check what they know.
Students will be able to…
You send a password over the internet, yet a snooper in between cannot read it. What scrambled it, and how does the right person unscramble it?
Project this and answer each question about how encryption keeps information secret — read the explanation after each one.
Tap any phase to open the teacher moves and student actions.
You send a password over the internet, yet a snooper in between cannot read it. Something scrambled it along the way. What, and how do you unscramble it?
Students answer questions about encryption.
Students try a shift cipher.
Students map everyday encryption.
Students reflect on encryption.
Aligned to the CSTA K-12 Computer Science Standards and the ISTE Standards for Students.
Apply multiple methods of encryption to model the secure transmission of information.
Explain how physical and digital security measures protect electronic information.
Give examples to illustrate how sensitive data can be affected by attacks.
Empowered Learner: understand and manage how personal data is kept secure.
Preview the three formative checks. Tap “Sample answer” to see what mastery looks like — hide them before you print for students.
Have students list three things they do online, mark where encryption protects them, and explain what it hides, so the idea connects to daily life. A printable encryption worksheet is in the Computer Science library.
Tap a card to flip it, then rate whether you knew it. Built from this lesson’s vocabulary.
A quick self-check with instant feedback, drawn from this lesson’s key terms.
A print-and-go review sheet with a built-in answer key. Tap “Show answer key” to reveal answers, or print the clean version for students.