A weighted score or a weighted grade is a course where there are different elements that contribute to the final course grade, and each of them has a different weight.
For example, the grade weight of homework could be 15% of the course grade, while the final exam may represent 50%. Knowing the different grade weights in your course elements is key to be able to anticipate and calculate your grade on a weighted course. Usually, you can find this information in your class syllabus.
If you want to know more about how grades are calculated, you can read our guide on how to calculate grades.