The flexible curriculum is set by the Ministry of Education and Culture and the Education Board. Education is compulsory between the ages of 7 and 16. After lower secondary school, graduates may either enter the workforce directly, or apply to trade schools or gymnasiums (upper secondary schools). Trade schools offer a vocational education: approximately 40% of an age group choose this path after the lower secondary school. Academically oriented gymnasiums have higher entrance requirements and specifically prepare for Abitur and tertiary education. Graduation from either formally qualifies for tertiary education.