How do archeologists record the location of artifacts on a coordinates grid? Objective Students will: 1) Use coordinates to label an excavation site and 2) Determine the location of artifacts within the coordinate system. Background This lesson plan is one in a series that uses archeology to teach concepts everyone needs to know. It can be used as-is, or be customized with images, objects, or stories representative of a particular park or place. Lesson plans in this series are: What Is (and Isn’t) Archeology? Inference vs. Observation in Archeology Primary vs. Secondary Sources in Archeology S Duration: 60 Minutes Additional Standards: National Social Studies Standard Correlation: K-4:2b, 2d, 2f 5-8: 1c, 2d, 2f ( coordinate grids can also be found in state math, science, and social studies standards).