My teacher handed out a syllabus at the beginning of the year, claiming to have a late work policy where he only reduces the max percent you can get on an assignment for every day it's late. The exact writing of his late work policy can be found here.
Two weeks into the school year, I handed in an assignment 1 day late, and received half credit. I assumed I received half credit because we went over it in class, so I didn't think anything of it. Three weeks later, I handed in another assignment 1 day late, which I received half credit for too.
When I confronted my teacher, his explanation was that he added the exact writing "The teacher reserves the right to change or amend this syllabus at any time without notice." inside of the syllabus.
Regardless of it not being morally right, is a teacher allowed to do this? I see no reason to give students a late work policy and then completely disregard it. Because I was unaware of him ignoring the policy, my grade dropped by nearly 20%(and my school is already half way through the first term).
Are teachers/professors allowed to change to completely ignore a late-work policy without notice?