An example that comes directly from my life s that for English we had to write a paper and it could ve anything that we waned but the teacher had to approve it and most people got approved of right away but a small amount of people had to do different ones because they were not approve which made it harder form them because it was a thing they were not really interested in which made they grade lower than it could have been because my grade was low for a paper in that class because I choose a bad thing that did not have enough info about it online but if that was a teacher designed project than I feel like would have done better on that paper than I did do

Another example of this working is the writing sol because it only has a small amount of prompts to keep people from getting the same one every year and it gives variety for the students doing it.