University classes can be large, however, depending on the faculty and the focus of instruction. Some ESP classes, for instance, routinely have over 30 students enrolled in each section. Contact hours for primary and secondary school teachers is usually 22 with a variation of 21 to 24 common. University instructors carry varied loads depending on the faculty and their responsibilities in the department. In addition to the texts cited above for the primary and secondary schools, teachers have access to British Council ELT Resource Centers and donated materials as well as to the United States Information Service library and materials donated through the USIS Fellows program, the Fulbright lecturers, Peace Corps volunteers, and other sources.
Teachers often develop their own materials to supplement available texts.
University teachers, for example, have a tradition of developing many of the texts they use for their classes. Photocopying, for many teachers, is often difficult to access, is too expensive, or unavailable for multiple copying. Many major publishers are present in the Czech Republic and offer their texts at prices that the market will bear. There is no nationality restriction for teachers of language in the Czech Republic, so it is common to find a wide variety of native speakers of English. Indeed, the first years after the revolution were marked by large numbers of untrained and inexperienced native English speakers teaching at all levels throughout the country.