Unit 6 is divided into two parts - Unit 6a involves completing a simulation based on a Concept Chapter, while Unit 6b consists of a word quiz covering the last 3 weeks of material. The word quiz must be completed and submitted by Sunday, February 24th at 11:59pm. Unit 7 will involve submitting a topic for a group presentation and the first part of an individual research paper, so students are advised to start working on it now rather than waiting until the last moment.