"When will I ever use this?" Answer that question with this engaging lesson connecting Common Factors to Cryptography (Codes). Take your students beyond basic lists. This lesson uses a "Secret Agent" theme to show how factors function as "keys" to unlock encrypted messages. It bridges the gap between abstract math and real-world computer science concepts in a way that is approachable for Middle Schoolers. WHAT'S INSIDE:The "Hook": Introduction to encryption and why we need factors to break co