https://docs.google.com/document/d/1A3_MZOxsIb3cFLDXmjKfWlFJPdL9MruIX_kM9sZKvGI/edit?usp=sharing
Block 4: use this link to get access to the class google doc:
https://docs.google.com/document/d/1TN6sJb5c7dczYO0ZCNnJtiWEdIug0LQzJ0yOQagsNHY/edit?usp=sharing