Secondary school is where we introduce them to more and more ways to manipulate those basic numbers and Alphabets (languages we represent things with here on earth) to do waaaay more than just basic things,

this is advanced manipulation of those representational languages we're teaching them and ways to use them for a ton of functions in the flow of daily life on ze planet.

Then we also want to give general knowledge, about everything, expand their database.. Biology, Physics and all its laws, chemistry, and tons of stuff

(Also crucial, doesn't need much change .. probably some additions but overall its on the right track)