Course History is where you can see your child's grades from previous years. If your child has been enrolled in the district their entire school career you could see grades going back to as far as their 3rd grade year. In grades K, 1, and 2 they do not use the traditional A, B, C system, they use Standards which unfortunately are not stored beyond that year.
If your child is enrolled at the High School they will also be able to see their most current GPA before the Course History as well.
GPA is calculated at the end of each Semester as the GPA needs the final grade with earned credit in order to calculate.