Translation:Primary school and secondary school are easy.
Just to confuse things, in England we mostly have Infants School plus Junior School which together are called Primary Schools. However some areas have First School then Middle School (called Primary Schools too). Then around 11 we go to Secondary School or College. But, now any of these may be academies.
Our Public Schools are fee paying schools.
The rest are State Education, although some of these are Catholic, Church of England, other religion or run by trustees or even parent groups.
Now you see why I started my translation with First School!
HA ! university is the easiest because we know what and how to study and nobody is behind our back all the time.