If a test is discovered missing at the end of exam, be sure it does not reappear as completed test. Close observation Changing grades on exams. Changing answers on exams Back to top Mark grades in grade book prior to returning tests. Warn students that some exams will be photocopied before returning to detect changes. If grades are placed on a computer, insure security is of the highest level.
Place grades on a disk, if possible, so that the disk can be safely locked up.
Photocopy the tests of those suspected before handing them back. Back to top Avoid giving take-home tests. Require oral presentations. Solution done in a way not covered by instructor. Switch to a book with no manual.