I can only assume they are talking about “school of the air”. Very much not the norm here, it’s very remote students hours from towns taking school remotely.
It was 1 way or 2 way radio back in the day, now wiki says it’s 1 way video stream with 2 way voice.
From wiki...
“ Each student typically spends one hour per day receiving group or individual lessons from the teacher, and the rest of the day working through the assigned materials with a parent, older sibling or a hired home-stay tutor.”
It could be the quantized version failing?