The paper is entitled "WiMAX in the Classroom: Designing a Cellular Networking Hands-on Lab." It describes a hands-on lab focusing on the WiMAX (4G) technology. The hands-on lab was developed for Prof. Zussman's class (ELEN 6951: Wireless & Mobile Networking II) and it uses the experimental WiMAX base station that was deployed at the Columbia campus as part of the NSF GENI project by the group of Prof. Schulzrinne. While most wireless teaching labs designed to date focus on random access technologies (for example, Wi-Fi), the collaboration between the groups has led to the design of the first cellular networking teaching lab. The teaching material is available online and can be used at other campuses where a WiMAX GENI basestation is deployed.