Here is a video from Ken Robinson in which he asks question and poses problems.
https://www.youtube.com/watch?v=zDZFcDGpL4U
how do we create a school system where pupils are valued for their talents and academic snobbery is banished into the bin of history where it belongs.
Educating children in batches, either based on their age, or in groups or 25 just seems counter productive and its probably too expensive to educate children individually, so we need to have smaller groups.Mix the years and the abilities, get rid of national curricula and standardised testing.