And so what I'm showing you here, this is data from a pilot in the Los Altos school district, where they took two fifth-grade classes and two seventh-grade classes, and completely gutted their old math curriculum.
I tako, ono što vam ovdje pokazujem, ovo su zapravo podaci iz pilot projekta u školi u okrugu Los Altos, gdje su uzeli dva peta razreda i dva sedma razreda i kompletno odbacili stari program matematike. Ovi klinci ne koriste knjige,