This is a well-known concept called the "flipped classroom" and it works excellently. Because the time a student NEEDS a teacher the most is when they are activ

This is a well-known concept called the "flipped classroom" and it works excellently. Because the time a student NEEDS a teacher the most is when they are actively struggling on a problem. https://en.wikipedia.org/wiki/Flipped_classroom https://en.wikipedia.org/wiki/Flipped_classroom