Because you have a full week to submit assignments from the time they are posted, no late assignments will be graded,this includes quizzes.
I’m having trouble understanding this section as well because I see that the syllabus states a penalty for late submissions in terms of percentages, but it does not say that no submissions will be allowed after the due date — I would like to know if late submissions can be submitted with penalties (i.e., with deductions), or if certain quizzes/assignments will never be submitted after the deadline?