This document provides 5 tips for making learning activities more challenging: 1. Start lessons with thoughtfully prepared challenges to engage students' curiosity. 2. Have students lead class discussions and check each other's understanding. 3. Assign students roles within groups to give them responsibility for coordinating responses and making decisions. 4. For straightforward objectives, find ways to add complexity, such as reordering images or leaving pieces missing. 5. Challenge students to justify their reasoning when completing puzzles or sequencing activities.