I remember class being boring, but I didn't have these two hour long block classes that seem in vogue now. Well, I did in college and grad school, but you could skip class. Or during grad school it was common to just surf the web when you got truly bored.

After reading this I remembered sitting in some really boring high school classes boiling with almost rage at how boring it was. Sitting and looking at the clock. I wouldn't have remembered that without the help of the article.

I can easily see how a teacher would lose this prospective.

My father was a high school teacher. When his school shifted to long block classes it was great for lab and shop classes because they lost much less time on setup and cleanup, but terrible for lecture classes because many students couldn't pay attention that long.