I was a student once and I often thought that lectures were a waste of time. Some lectures are probably a waste of time, when student could use the same time getting more out of studying on his own. Yet, lecturing is still the modus operandi of instruction, from primary schools to universities. It has been time tested universally, and its value should not be underestimated. Furthermore, we teachers are hired to give lectures; we have little choice. I have, therefore, had to give much thought to the possibility of optimizing. Why would you want to attend my lectures? What can you not learn from reading a book or an article in a library?
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