The goal of this clinicial trial is to test the acceptability and feasibility of linear cognitive aid intervention to support EMS teams in responding to pediatric emergencies. We are testing the hypothesis that cognitive aids with linear logic will be feasible to use and acceptable to EMS teams in urban and rural areas. Researchers will compare technical performance, teamwork, and self-assessed cognitive load of participants to see the difference between performing resuscitations using their current standard with existing cognitive aids and using our linear cognitive aid. Participants' teams will: * perform in situ high-fidelity simulation of two critical children's resuscitation scenarios * be randomized to 1) perform both resuscitations with their current standard with existing cognitive aids or 2) perform both resuscitations using our linear cognitive aid.