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How much can you actually do in 1 hour that’s 45 minutes long?

All my classes were 1.5 hours long. Yet professors still regularly chose to introduce new material on days with back-to-back classes, leaving standalone classes for practice or “less important” topics.

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>How much can you actually do in 1 hour that’s 45 minutes long?

Almost exactly as much as one that's 55 (or 60) minutes long but many people are late to.

But yes, "1 hour" is fairly short for any deep topic progress. I vastly prefer classes that are 2 or 3, it gives time to have questions and not be in a blind rush.

We usually had 2 hour classes starting ct, some of them with another 10 minute break.

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