Ask ten EdTech companies how they decide who works a booth and you will hear ten versions of the same answer: whoever was available, whoever lives near the convention center, or whoever we sent last year. That is not a staffing strategy. It is a travel-budget decision wearing a lanyard, and it is the reason the biggest shows on your calendar are often the ones you handle worst.
There is a better way to decide, and it fits on the back of a napkin before you book a single flight. Keep reading to get a simple formula that turns "how many people" from a gut call into a number you can defend.