Did you even read the article? Because what you say is a direct contradiction of the article. The article even explains why the reforms didn't work in the US(TL

Did you even read the article? Because what you say is a direct contradiction of the article. The article even explains why the reforms didn't work in the US(TL;DR; they weren't properly implemented) while they did work elsewhere, like Japan which is the example the article uses. Given that their statements are backed by evidence while yours are not, I think I'd rather believe them. As an aside, no one is saying that there is no place for practice in math teaching. What they're saying is that it needs to be balanced with time spent actually learning the concepts and exploring on your own rather than just practicing and drilling. From the article: "Similarly, 96 percent of American students’ work fell into the category of “practice,” while Japanese students spent only 41 percent of their time practicing" Those students still spend just under half their time practicing, which is still significant, just not the overwhelming majority of their time as in the case of American schools.