u/ClearWedding8587

Why are High School courses labeled with these hardness labels below:

1. Foundations of (i.e. Foundations of Math 1)
2. CP (i.e. English 1)
3. Honors (i.e. Math 2 - Honors)
4. AP or IB (IB Programme or AP PreCalculus), These are Just the Example course names in parantheses, nothing else

and not with the labels:

1. Casual/Easy/Basic/Easier
2. Normal/Regular/Standard
3. Hard/Harder/Super/Challenge
4. Super Hard

So why are the hardness labels of the high school courses labeled "Foundations of", "CP", "Honors", "AP/IB" and not the 12 labels in 4 label groups above?