This no prep, self-checking Google Form turns evaluating algebraic expressions (with substitution) into a game-like challenge, making it a perfect activity in February (or use anytime)! Students solve problems, decode their answers, and unlock parts to reveal candy hearts—all while getting instant feedback on their work. With increasing levels of difficulty, built-in feedback, and a visual reward system, this activity is perfect for independent practice, concept review, or sub days. On