I didn't RTFA, but the headline made me think about my experience in 7th/8th grade when I moved to a new city. In previous years my grades in math were pretty

I didn't RTFA, but the headline made me think about my experience in 7th/8th grade when I moved to a new city. In previous years my grades in math were pretty bleak. When I transferred, they made a mistake and put me in honors Algebra. I just sort of went with it and it was a nightmare. I had essentially skipped a year of some essential math that wasn't being covered and we were, of course, expected to know. The experience was horrifying and I essentially BS'd my way through the class for the first half of the year. However, at some point things started clicking and by the end of the year I was good to go. I continued with honors math in high school, including pre-calc and calculus and then took every math class known to man to get my mechanical engineering degree. I now wonder what would have happened if they decided I had "low ability" based on my previous performance.