Change will come, but not soon. we have had experiments but limited success. Sorry folks, it is just that way. Success will come when we learn to integrate properly with a biology of learning. The objective of such proto units of study should be local mastery inside the unit and no transition unless that is achieved.
You do not get on the team until you can and do catch the ball consistently and yes instinctively. That is a reasonable demand as well. Better by separating out proto units for mastery you limit no one and naturally bounce into other units as individuals are freed up.
An example of this easy to understand is that a module of arithmetic or mathematics for that matter should include competency but also speed tests. simply assigning homework is counter productive. Better to have the student prep the homework and then do it in class against the clock. Things like that makes it interesting but also affirming while isolating those who simply need much more practice.
The schools need to fold in motivational systems into their unit instruction to develop maximum performance...
Why Schools Don’t Learn