Final answer:
An approved driving course usually mandates a certain number of hours for hands-on practice in a vehicle with two sets of controls, for the trainee and instructor's safety.
Step-by-step explanation:
An approved course typically requires a specific number of hours of behind-the-wheel instruction in a dual-controlled vehicle. The actual number of hours can vary depending on the state or country's licensing requirements. Dual-controlled vehicles are designed to ensure the safety of both the learner and the instructor, providing an additional set of controls for the instructor.