Instructions:

When to do this exercise:

• If you are prepared for Exam 1 by the time of Session 6, you will do this exercise in class, getting help as needed.
• Otherwise, you will use Session 6 to continue preparing for Exam 1 and do this exercise on your own OUTSIDE of class, per the following instructions.

How to do this exercise:

1. Do the Session 6 Preparation, including its Moodle quiz, as usual.
   • IMPORTANT: If you have questions on the Preparation/Moodle Quiz (as is likely!), STOP and get answers to your questions BEFORE continuing these instructions.
2. During Session 6, you will have received paper-and-pencil copy of a document labelled Box-and-Pointer Diagrams, Mutable Objects. If you lost your copy, ask your instructor for another (best) or print this copy of the document.
3. Work through that paper-and-pencil document, reading it carefully, and STOPPING at the following points to check your answers, as follows:
   • Read Page 1 carefully.
     • If you have any questions about it, STOP and get answers to your questions BEFORE continuing these instructions.
   • Read Page 2 and do its exercise.
     • When you are done with the exercise on Page 2, CHECK YOUR ANSWER here (follow the link).
     • If you have got any part of that exercise wrong, STOP and get answers to your questions BEFORE continuing these instructions.
   • Read Page 3 and do its exercise.
     • When you are done with the exercise on Page 3, CHECK YOUR ANSWER here (follow the link).
     • If you have got any part of that exercise wrong, STOP and get answers to your questions BEFORE continuing these instructions.
   • Read Page 4 carefully.
     • If you have any questions about it, STOP and get answers to your questions BEFORE continuing these instructions.
   • Read Page 5 and do its exercise.
     • When you are done with the exercise on Page 5, CHECK YOUR ANSWER here (follow the link).
     • If you have got any part of that exercise wrong, STOP and get answers to your questions BEFORE continuing these instructions.
   • Read Page 6 and do its exercise.
     • When you are done with the exercise on Page 6, CHECK YOUR ANSWER here (follow the link).
     • If you have got any part of that exercise wrong, STOP and get answers to your questions BEFORE continuing these instructions.