<p>@TheDad it’s true that the same econ class may have different amounts of math since the instructors have their own teaching style, but there are certain classes that have two types: one is more math intensive than the other. If a student is trying to choose a math intensive econ class, then they would choose Econ 101A over 100A for example. Econ 100A and Econ 101A have the same topic, and either one fulfills the same requirement, but Econ 101A is for those who want the math background. It wouldn’t really make sense for someone to take Econ 100A, and then complain that they aren’t being challenged enough. </p>