Today's material
For today's class you can choose to go in person and work with a group or work independently. If you work with a group
you will share some notes in your KWL repo. If you work independently, you will post on GitHub to share ideas and you
will read some extra things to get alternative viewpoints.
The groups you work in can be any number of people, but all should contribute to the discussion and
Mark will be in class to help answer questions, so you can go in person even if you want to work indepdendently.
Full Changelog: c20...c21