Model instruments are simplified representations of real-world objects or systems used for teaching, demonstration, or experimentation. They help learners understand complex concepts by providing a tangible way to visualize and interact with the subject matter. For example, a musical instrument model can illustrate sound production, while a scientific model can demonstrate physical laws. These instruments can vary in complexity, from basic physical models to sophisticated simulations. They are commonly used in fields like education, engineering, and science to enhance understanding and facilitate hands-on learning experiences. By using model instruments, learners can grasp abstract ideas more effectively.