Go to Canvas or the Student Portal, view your class progress report. All assignments that are required and the associated due dates are listed. If it is on the progress report it is required. If it is not on the progress report, it is not a graded item.
Remember: Canvas and the Student Portal are ALWAYS where you want to check for the most updated, accurate grade information, NOT Apex. CUSD weights all exams, and only Canvas and the Student Portal reflect this weighting.
Grades are updated hourly in Canvas and on the Student Portal.