The Materials presented on this web site is a part of INS classes taught by Dr. Shapiro. You are free to use it for your class activity but no other purposes.

When you click one of the chapters listed on the left you will be asked to provide a pair of user-id and password. If you are new to this Q&A session please read the help messages on the right side of the log-in screen.

Once you are logged in, you will be able to try each question interactively or download a printable version of questions. In the interactive mode, you will see a solution to a question at the end of each question. The printable version is in PDF file format. It includes all questions in a chapter and a set of answer keys at the end.

You may need to down load and install Adobe's Acrobat Reader® to see the printable version properly. Acrobat Reader is available for free of charge from Adobe's web site.