Casualty simulations are an example of a:

Casualty simulations are classified as nonprojected teaching aids because they involve the use of physical resources or scenarios that do not rely on electronic or visual projection technology. These simulations create realistic, hands-on experiences that allow trainees to practice skills in a controlled environment, making them effective for demonstrating processes such as triage, patient management, and emergency response scenarios.

Nonprojected teaching aids, like casualty simulations, allow for interactive learning opportunities that engage participants and reinforce their skills through experiential training. They can include the use of manikins, role-playing with simulated victims, or even dynamic scenarios that replicate real-life incidents. This type of teaching aid is particularly valuable in fire rescue training, as it not only helps learners retain information but also prepares them for the types of situations they will encounter in the field.

In contrast, the other options include projected teaching aids that utilize technology (like slides or videos) to convey information, which is not the case for casualty simulations. Therefore, identifying casualty simulations as nonprojected teaching aids accurately reflects their role in practical, hands-on training environments.