2.4 : Direction

Direction

Knowing your destination and the path to get there is important for any journey, whether exploring a new city, hiking in nature or sailing across the ocean. For centuries, people have used tools like compasses, maps, and even the stars to figure out their location and the direction they are moving in. Let's explore the concept of direction and how it helps us navigate our world.

Science and Engineering Practices (SEP): Developing and Using Models

Navigation is an essential skill that allows people to explore new places and travel safely. You can better understand how maps, directions, and locations work together by creating models.

• Create a map of your neighborhood using a city map as a reference.
  • Mark key locations such as schools, parks, grocery stores, bus stops, and your home.
  • Label your map's cardinal directions (North, South, East, and West).
  • Add a grid and coordinates to represent different areas of your neighborhood.
• Use a compass to follow a planned path from one location to another and check if the directions align with your map.

As they explore, students can consider the following questions:

• How accurate is the map when used in real locations?
• How can we improve map models to make them more useful for navigation?

Crosscutting Concept (CCC): Cause and Effect
Navigation depends on cause-and-effect relationships between natural phenomena and technological tools. Recognizing these relationships allows for more accurate and efficient movement across different environments.

Navigation tools function based on predictable causes and effects. For example:

• Earth’s magnetic field affects how compasses point north.
• The position of satellites determines the accuracy of GPS signals.
• Changes in atmospheric conditions can interfere with radio signals used for navigation.

You can explore how understanding these cause-and-effect relationships improves navigation technology and human movement.