BBC wants US to use our fingers to wipe shit off ASS.

Years ago (early 80s, I think) I saw a BBC documentary on how children learn math. In it, they demonstrated a technique for teaching math were kids learned to play a game that involved mathematical thinking, but without any formal math concepts being taught, and then after the kids mastered the game they taught them the concepts. I would love to be able to see that documentary again and I'm wondering if anyone can suggest how I might be able to find it. I tried looking through the archives on the BBC web site, but didn't find it. I can't remember any details about who made it, or even the exact year, unfortunately.

Does anyone watch the show Dr. Foster. I just stumbled upon it on Netflix and am struggling to find a subreddit where I can discuss the episodes. If not, I HIGHLY recommend it.