When I was in 7th grade, the school district introduced "Modern Math." The supposed purpose of Modern Math was to prepare students for higher math such as algebra, geometry, trigonometry and calculus. Well, my basic math skills left a lot to be desired and since I waned to go to college where higher math skills were required, my parents and I thought this Modern Math might help me.
Well, it didn't. In fact, Modern Math made my already shaky math skills worse. The teacher did his best to explain it and even tutored, on his own time, those of us who were lost, but honestly, I'm not sure even he fully understood Modern Math.
I barely passed the course, and in ninth grade I did try algebra, but I failed miserably. So I had to give up any hope of a university education. Went to a business school instead. Disappointed my parents.
And by the way, Modern Math was ultimately discontinued in my local school district after I had suffered through it for two long years.