Final answer:
Directory maps in classroom instruction serve as a tool for guiding lesson navigation, ensuring proper organization and tracking of the course content.
Step-by-step explanation:
Directory maps in classroom instruction are used for guiding lesson navigation. They help students and teachers to follow the course material in an organized manner, ensuring that all important topics are covered, and progress can be tracked effectively. For example, in a lesson on Direction of Movement, directory maps can visually represent the sequence of topics from explanations and photos in the basics to the skill-building exercises and the Record Your Findings section. In a social studies context, directory maps are also used for planning and executing field trips, as indicated in the instructions that involve mapping out a destination and understanding the natural history or geology of an area. Teachers can use directory maps to integrate technology in lessons, such as having students use GIS in activities like Crossing the Line or March of Time.