As in Germany, secondary education consists of two main types of schools, attendance at which is based on a pupil's ability as determined by grades from the primary school. The Gymnasium caters for the more able children, in the final year of which the Matura examination is taken, which is a requirement for access to university. The Hauptschule prepares pupils for vocational education but also for various types of further education (Höhere Technische Lehranstalt HTL = institution of higher technical education; HAK = commercial academy; HBLA = institution of higher education for economic business; etc.). Attendance at one of these further education institutes also leads to the Matura. Some schools aim to combine the education available at the Gymnasium and the Hauptschule, and are known as Gesamtschulen. In addition, a recognition of the importance of learning English has led some Gymnasiums to offer a bilingual stream, in which pupils deemed able in languages follow a modified curriculum, a portion of the lesson time being conducted in English.