Review the introduction. (This is fast and painless!)
And here it is: Introduction.
This course will become read-only in the near future. Tell us at community.p2pu.org if that is a problem.
Many countries and all states in the United States qualify their teachers by requiring that they pass a subject-matter exam. The University of California, Irvine OpenCourseWare project has developed a preparation resource for the exam. We are now sharing this material with P2PU and providing a moderated study gruop. So, whether you need a Biology refresher or are studying for an actual exam, this may be the place for you. Explore the resource, post your questions, answer the problems and ask for help.
And here it is: Introduction.