It doesn't work yet. The industry will try again and again. By the way, check out the School product line from Constructor Tech (disclosure: I work for this co

It doesn't work yet. The industry will try again and again. By the way, check out the School product line from Constructor Tech (disclosure: I work for this company on a different product): https://constructor.tech/solutions/schools?tag%5B0%5D=16 https://constructor.tech/solutions/schools?tag%5B0%5D=16. They are backed by hard science, and their founder made a scientific career while researching this topic. Evidence shows they are working, especially for kids lagging behind classmates.