Currently I teach grade 10, which is the first year of high school for students where I live. I've started giving little 10 minute bell quizzes at the beginning of class about 3 times a week. The bell quizzes cover whatever material we did in class the day before and are meant to encourage my students to keep up with their homework. I have one student who has issues being on time for class. At the beginning of the semester, he was late twice on quiz days, causing him to miss the quiz. I allowed him to come in before school to make-up the quizzes he missed. The next time we had a quiz, he chose to go to the library to cram for it instead of attending class. This caused him to miss the quiz, but I did end up letting him write it after giving him a hard time about it. The reason I let him write those quizzes is that, in our district, we are not allowed to give zeroes. If a student does not complete work for whatever reason, we have to provide the student with an opportunity to show their knowledge and get a grade for it. However, the problem continued with this student. He was late again last week and again yesterday. I finally told him that he would not be writing yesterday's quiz and called home to discuss with his mom. The student thinks I am being unfair by not letting him write the quiz. He talks to me with a lot of attitude and it's disrespectful. The other issue is that some other students in the class also missed yesterday's quiz. I let them make up the quiz today, because they either had a good reason for missing it (like a doctor's appointment) or they are not frequently late and I realize it was a one-time thing. Does anyone have suggestions for how to handle this? I know the student will probably be late again before the end of the semester and end up missing some more quizzes.