If you want to know how your courses are graded, you can check your progress report. Each school sets up their grading differently, and sometimes it's even different from course to course. Homework assignments may be a large part of your grade, or exams may be worth more.
Either way, if you check grades on your progress report, you can see how different assignments are scored in each course. In the example below, Algebra I assessments are worth 70% of the grade, while homework, exit tickets, and classwork are collectively worth 30%.