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1. Instructor identifies an appropriate number of key dates in the Precambrian to investigate. 2. Students break into groups (method to be determined by instructor) and each group will be assigned a particular time in the Precambrian (one author likes to have groups draw assignments out of hat!). 3. Students investigate their time period using appropriate source materials (we suggest the class notes, textbook and perhaps supplementary materials identified in the form of popular articles (e.g., Scientific American, Smithsonian, National Geographic, etc.) or websites. Questions Using your prior knowledge of your time period, what scientific equipment might you want to take with you? What will you experience on your time travels? Is there a place to land? What is the temperature? Can you breathe the atmosphere? Do you need a life support system? What is the atmosphere composed of? Is there any water? What is its phase? Can you drink it? Do you see any life, or evidence of its presence? How would you recognize the life? What life do you expect to observe or not observe, and why? What questions were you able to answer with your trip? What questions were you unable to answer? What aspects of the environment at this time most surprised or stuck you? 4. Group presentation a) Create a very simple PowerPoint presentation (10 minutes) for the class. b) Each group member must present part of the information.
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