Ben finally got through the Functions Operations test! I'm so happy for him. He appeared to be very relieved, too. I think he has now understood what he needs to do if he has to interrupt a test (e.g. if class comes to an end), so hopefully he won't get any further automatic gradings of his tests. We had the time to nevertheless review some of the principles involved, so he should finally be able to fully close the chapter on Function Operations. In the remaining time, we proceeded to the next chapter, and reviewed some of the problems and principles in the chapter pre-test. I can see that Ben is very eager to proceed now at full steam, now that this little series of glitches is finally overcome.