Only material included in the Learning Objectives will be tested. Not all Learning Objectives are covered in lectures. Some are only in your reading. Some are covered only in the problem sets. You should be guided by the Learning Objectives when reading and studying.
Facilitators are primarily present to oversee the group process.
Most faculty are not content experts in all the areas covered by the course. Facilitators are not responsible for providing explanations but can answer questions about experimental methods. The aim is for faculty to facilitate discussion, not participate in or direct the discussion. In most cases, this enables a group discussion without the use of outside resources. Except for the review questions at the beginning of many problem sets, the problems are not contained in either books or notes and will require the synergistic problem solving skills of all group members to derive an answer.