My guess is Altschool is kind of Reggio-Emilia plus iPads and https://trello.com/ ... that the creative/observant/sensitive teacher would put "differentiated" curriculum on each child's "trello" stack, weekly. The 8:1 ratio would help. They are not strictly about "gifted". At this writing they have not yet announced a Palo Alto nor a Mountain View campus. But they just got the $33mm tranche so give 'em a month. Office space (or campus) not easy to find on the Peninsula.

Yes, fine print is the $4,350 tuition supplement to cover additional real estate costs for Palo Alto ($23,450 total tuition). The other fine print is they may slip from 8:1 to 10:1 or higher. (FWIW Hattie in Visible Learning meta-meta-analysis did not find ratio to be all that).