Vice article on professors spotting ChatGPT essays because they're "garbage"

[ProfessorGAC]

4. When In Undergrad...

...it was chemistry department policy to have a 3 question oral quiz every week. If one knew the material it would take 5 minutes, tops.
Every chem class I took did it. The blue book was for actual tests, other than midterm & final. The physics class was the same because the instructor adopted the policy.
Orals had to be slotted by the day before the bi-weekly test.
Every instructor did a good job planning, because if one did well on the 2 oral quizzes, a C was essentially guaranteed on the test. If one nailed the orals, a B+ or better was nearly a lock.
Now, I didn't go to a school with 300 students in organic chemistry. More like 60. Not sure how practical this approach would be in a much bigger school.