This workbook accompanies Integrated Korean: High Intermediate 1, the fifth volume of the best-selling series developed collaboratively by leading classroom teachers and linguists of Korean. All volumes are developed according to performance-based methodology and principles: contextualization, learner-centeredness, use of authentic materials, function/task-orientedness, balance between skill-getting and skill-using, and integration of speaking, listening, reading, writing, and culture. Grammar points are systematically introduced with simple but adequate explanations and abundant examples and exercises. Each situation/topic-based lesson consists of objectives, pre-lesson topics, and conversation, reading, further reading, and culture sections. Conversation and reading sections contain comprehension questions, grammar and usage, activities, and English translations. Integrated Korean is a project of the Korean Language Education and Research Center (KLEAR) with the support of the Korea Foundation. In addition to the five-level Integrated Korean textbooks and workbooks, volumes include Korean Composition, Korean Language in Culture and Society, Korean Reader for Chinese Characters, Readings in Modern Korean Literature, A Resource for Korean Grammar Instruction, and Selected Readings in Korean. Audio files for this workbook may be downloaded in MP3 format at https: //kleartextbook.com.