We only have so much time in our day. How can we get the biggest bang for our buck with our limited time?
Take a look at John Hattie's interactive visualization of influences on student achievement and their effect sizes. What is "effect size"? In layman's terms it is a unit of measure that allows us to measure the expected increase in achievement for a particular influence. The bigger the "effect size" the better.
Here it is...
Of particular note...try to find homework. You will see that it is way, way down the list. Seems to me, all the energy we put into homework is for very little gain. Perhaps, we should refocus our energy on things that are demonstrably more beneficial to our students.