I have one student doing his third attempt to get his grade to passing. He cheated on the first one, did a slap happy job on the second and is finally (when it is close to too late) actually doing what I wanted him to do in the first place - you know, on time so we don't have to do all this catch up work?
I have several others who let all of the opportunities slip through their fingers.
The district has taken away one of the tools I use to let them catch up - minimal work for me since it is a graded test on another site. Have to figure out what I can use instead.
Because, sure as God made little green apples I have kids who will put off until the last minute anything they can do to raise their grade.
In that link I put above there is a comment form a teacher: "As a teacher I always allowed students to submit missing homework—even months late and with no penalty!—provided they did twice as much as originally assigned."
That is twice as much work for me but it will probably be so worth it. I think I will start doing the planning for that now.