The document outlines a lesson plan for 3rd grade students to research and present on Native American tribes that historically lived in the different regions of California. Students will be divided into groups, with each group researching a tribe that lived in a specific California biome based on the resources available. The groups will present what they learned about how the tribe secured food, water, shelter, clothing, and dealt with injury/illness based solely on their environment's resources, without modern technology. The class will then discuss and compare how each tribe's way of life was influenced by their environment.