High school students are given a score of 0-4 for each homework assignment, depending on how much of the assignment is turned in on time. 0=no homework completed; 4=homework completed satisfactorily. At the end of the grading period the scores are averaged and treated as one of grades that goes on the report card. I’m thinking this score has the equivalent of the quiz averages. This score has the capability of raising or lowering a student’s overall grade and puts the ball back in their court. Is it foolproof? No, but it does relieve some of the frustration for the teacher.
We don’t use this in the elementary, partly because things are structured differently, and partly because students do need to learn what they are doing in foundational subjects in the lower grades. For students who have a chronic problem of unfinished homework we’ve used some after school “study time”. For a student who had a bad problem with this, the teacher had an agreement with the parents that if the child wasn’t finished with all but one of the core subjects, they stayed after school that day to get it completed.