"It is essential to document what issues were reported in the first testing session and make sure they were not reported in the second testing session."
This goes with more than just testing. It's absolutely ongoing. Being able to teach more than one class a day, I can take what students either picked up or didn't, and apply more or less to the next class, and even retouch on what the class the night before learned that the morning class may have missed out on the next time I meet with the morning class.
