Chapter 6:
https://docs.google.com/presentation/d/1ae1iU9Jk_HGTerLfLMa4LaLl57QN0rRFjyUG_jESkDQ/edit?usp=sharing
Chapter 7:
https://docs.google.com/presentation/d/1vQLYIgkm3-lrjXQBNVnhojHhOA_mnMt_80zrYCxWbRc/edit?usp=sharing
Chapter 9:
https://docs.google.com/presentation/d/1aeIRgQZlLzx0oIXzHETBTnolZHFwdecDKDXtJ0tuUmY/edit?usp=sharing
