রষটরবজঞন পরথম খণড 1 is the latest edition of the book 'Bangla Teacher' for Class XI students of West Bengal Board. This educational app is based on the new syllabus and program introduced by the West Bengal Higher Secondary Education Parliament. The app provides a comprehensive guide to the text, including stories, poems, plays, international poems, and Indian stories. Each text is divided into specific paragraphs or sentences, and the app offers semantics and annotations for each part, following the structure of the Parliament-directed question paper. At the end of each chapter, there is an overall thematic Q&A section. The app also covers the history of language and Bengali art and culture, and includes recent topics in the essay section. The book aims to provide helpful support for student practice, addressing questions from selected schools in West Bengal and past Higher Secondary Examination questions. The language used in the book is simple and easy to understand, making it informative and accessible for students.