I just read that the TSA is training their agents in this techniques.

My college has "Prior Learning Assessment". If you already know the stuff, they will test you and you can be exempted from taking the class.

Don't waste your time on a worthless class if you can avoid it.

When I went back to grad school, I had a similar experience...I knew WAY more than my professor. I discussed the curriculum IN the class, which was in keeping with the type of class it was. We ended up changing 2/3 rds of the course that semester. I got an A, and the rest of the students benefited. Fortunately, the professor was interested in us all learning, not just doing the fastest and easiest job he could. (It was a night time class, all adults.) If it's in front of kids, or if the prof is trying to look good, you might want to speak with him privately, so he doesn't lose face. You can offer an outline of what he might want to add, like LibreOffice, or whatever. Be sure to also suggest materials he could use as text, or links to the program and information. If nothing else, it would be useful for the other students. If he decides against it, THEN write your letter AFTER the semester.

"...make sure that my recent investment in an Acer laptop will last me a good long while"

Huh? Please don't tell me that you're one of those people who think that once a computer gets infected with malware that it has to be thrown out. Wipe the hard drive (or replace it if you want to be super-thorough) and reload the OS, apps, and data. Presto: investment salvaged.

In fact, you might want to do this from time to time even if your computer doesn't get properly infected, because Windows (and to a lesser extent other OSes) build up performance-sucking cruft over time as you use them. I refurb the "retired" laptops before my employer sells them off, and the people who buy their old ones are often surprised at how fast they run after a clean reinstall of Windows.

"...make sure that my recent investment in an Acer laptop will last me a good long while"

Huh? Please don't tell me that you're one of those people who think that once a computer gets infected with malware that it has to be thrown out. Wipe the hard drive (or replace it if you want to be super-thorough) and reload the OS, apps, and data. Presto: investment salvaged.

In fact, you might want to do this from time to time even if your computer doesn't get properly infected, because Windows (and to a lesser extent other OSes) build up performance-sucking cruft over time as you use them. I refurb the "retired" laptops before my employer sells them off, and the people who buy their old ones are often surprised at how fast they run after a clean reinstall of Windows.