Ever wondered how to teach coding without a computer? It happened to me, so I created my own codes from scratch. You can break your students into teams and give them a set of codes to program the teacher or a group member through a maze. I used masking tape and created a maze throughout the lab. These codes can be printed off using different colored cardstock and laminated for durability. Give your students a specific amount of time to create the right code to get someone from start to finish. I