Entered high school C's and D's in Math.
Summer of Junior Year, began taking the reefer.
Straight A's afterwards, even enjoying routinely beating the "nerds" from the previous year on tests. It all just clicked into place. Hard to explain.
Yet, anon hears Doctors always saying it impairs brain development in things like Math and Logic. Nope. Not sorry to tell you, it did not, quite the opposite.
Maybe it's the alcohol consumption effects; because my peers also were light tokers (no booze) and also weren't the Cheech and Chonging type either we did fine. But the stoners who also drank continued to fail.
I still do not drink.