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Lesson Plan

Bedrock Learning

Students identify soil and rocks by using a document camera.

Amy George

Urban high school students are often preoccupied by the visible science they find at eye level and fail to make the connection to the importance of the geological structures on which they live. At Hebron High School in Carrollton, Texas, students use document cameras, the Internet and computers to identify and map these structures.

Lesson description: Students learn to identify the types of soil and rocks in their area by bringing samples from home. Identification is made with the assistance of the document camera, and collaboration is encouraged. Still images of each sample are captured and saved on the computer for student presentations. If tests are necessary for soil or rock identification, students use the document camera to capture video of the test being performed. After proper identification is made and digital media is created and saved, students prepare Windows Movie Maker presentations to discuss their findings. Class collaboration follows, with each student contributing their best photos to create a wall-sized map of the area and the types of rocks and soil found in the Dallas–Fort Worth metropolis. Unusual findings or “out of place” samples are also identified and their origins noted on a world map. Students are encouraged to analyze their results, giving possible explanations for unusual findings.