This lesson allows students to apply and use their algebraic thinking through the lens of cryptography, where students problem solve to crack the code and unlock a vault - perfect to help your students master algebraic expressions through clear explanations, thought-provoking challenges, and engaging activities! Knowledge and Skills Covered:💡 Knowledge:I know that a variable is a letter or symbol used to represent a value that can change or is currently unknown. In this lesson, we use varia