Homework is the real education time. The lecture is less than half the ingredients. You can't learn without engaging with the material. The best lectures follow a question-trytoanswer-getrightanswer pattern where students are basically doing homework as part of the lecture.
We wrote all graded essays during class. It was great. Nice and timeboxed. When you're done you're done. Also forces you to keep it short enough that the teacher doesn't drown in stuff to grade because how much can you really write by hand in 2 hours?