Most teachers give their students more than one assignment throughout the year, the hassle for the teacher is not only the keeping track of all of the grades for the assignments, but some assignments may be worth more than others. Moodle will allow a teacher to grade every assignment out of 100 (because this is something students are familiar with) and Moodle will do all of the calculations in the background working out the individual marks for each assignment and combining them all together once Moodle weights all of the assignments accordingly and presents a total mark to the teacher and the student. The video below illustrates how this can be done