Students are encouraged to get help from TA's or other students if they have trouble with these questions. The schedule of opening and closing dates for the Lab Previews are given on p. x of the Lab Manual. There are 8 Post-Labs, worth 8 points apiece. They can be accessed from the Course Home Page. The schedule of opening and closing times is shown on p. x of the Lab Manual.
Students can take as much time as needed, during the posting period, to work on the problems.
Answers can be changed during this period. Again, students can ask for help on these problems. These replace the Lab exams given in the past. The last answer entered before the deadline is the answer that is graded. Scores will be available on the on-line course gradebook after the posting period.