They should completely learn narrative text, recount descriptive text, procedure text, news item text, analytical exposition, spoof text, explanation, discussion text, hortatory exposition, and review text. When learning English trough text-based approach, students concern how each type of the texts is organized and how it is typically written. That are what is called Generic Structure and Language Feature of each text.
Besides learning such kind of essay, students also learn short functional texts. They are texts which are used for information everyday. In learning English, the texts can be advertisement, letter, job application, announcement, invitation, banner, poster, memo, and pamphlet etc.
The essays and short functional texts should be completely done with transactional and interpersonal conversation. The Expressions to say something politely or to ask something which is necessary are included in this text-based learning approach.