Adapting and Supplementing English Textbooks for National Context

The aim of this work is to analyse how much the market trend textbooks are suitable to different contexts, particularly Uzbek national context. Due to the limitation of research methods, to cover every aspect of the study and save time, energy, and funding, one of the most effective approaches – a triangular approach was employed: incorporating investigation, observation, and questionnaires. The initial phase involved scrutinizing various course materials to assess their suitability for facilitating real-life conversations, aligning with learners' linguistic capabilities, and achieving the i+1 model as proposed by Krashen. Subsequent visits to learning centers enabled direct observation of classroom dynamics and facilities, while engaging in discussions with educators provided insights into their strategies for fostering communicative lessons. Employing a questionnaire proved efficacious, not only for collecting data but also for streamlining the research process. The results showed that adaptation is the aspect of textbook evaluation that is too important to neglect. Therefore, adaptation and supplementation must be carried out by any means necessary.