Contrast that with college which is 4.0 for all classes. If you want to get into med school, you need the higher GPA. Instead of taking good problem solving classes (like Linear Algebra, advanced BioChem, or a good advanced History, etc) other than those required to get into med school (or other professional program), classmates took Walking to get an easy A. I found this deeply sad.
That's not how it works now for med school. They look at what classes were taken and the science and math GPA is calculated separately. Ideally, they also want to see that students can take multiple difficult classes at once. I advise college premeds.