Only senior general secondary and pre-university education At Cals College, the pupils work and learn in a secure environment and we encourage them to give of their best. Pupils really enjoy the space Cals allows them for exploring their own talents and interests. In seventy-minute lessons, pupils can work on their subjects for longer and in a greater variety of ways. There are fewer subjects in a day and pupils are challenged to learn actively. We are the only school in Nieuwegein to offer only senior general secondary and pre-university education with ‘gymnasium’ and bilingual pre-university education.