There are very scalable ways to lecture (enable learning) such as student centered learning (called active learning in the post). These are both cost effective

There are very scalable ways to lecture (enable learning) such as student centered learning (called active learning in the post). These are both cost effective and result in better learning outcomes. Lectures are omnipresent for many reasons. One is because it is a lot easier to stand up in front of the class and just spew out knowledge than to take the time to understand what the students need in a class and adjust lectures appropriately.