How do people survive in their environments? Students will demonstrate how Native American Tribes adapted their lifestyles to the environment in which they lived. Objective Critical Content Students will demonstrate how Native American Tribes adapted their lifestyles to the environment in which they lived. Student Objectives Students will be able to identify what aspects of life are affected by environment and how Native Americans adapted their lifestyles to their environments Background The first people living on the prairie were the ancestors of the various Native American Tribes. Through ar Duration: 90 Minutes.