Can you tell me more about the schools in Valais?

Schooling is the responsibility of the cantonal authorities. School attendance is obligatory for eight to nine years, and education at the State Schools is free of charge. Nursery school; which children enter up to the age of four; which is optional; is followed by Infant School for 4 to 6 year olds. The second year of Infant School is compulsory (from age 5) and is followed by primary school and secondary school. After this comes either vocational training combined with practical work of two to four years’ duration, or attendance at a higher secondary school. The grammar schools (where the national school leaving certificate can be obtained) prepare pupils for university entrance.