Watch the following two instructional videos prior to this week's tutorial. They'll be most effective if viewed in order. The total viewing time is 17 minutes (we'll aim to keep the total viewing time under 15 minutes in future weeks). You can enable closed-captioning on the videos by clicking the [CC] button at the bottom of the video.

  1. Consensus & Dissent
  2. Reasoning About Systems
  3. Annotation