Description Unit 1 - Korean Language Day 1: Grandmother Seolmundae (Folktale) Day 2: The Class Meeting of Grade 4, Class 2 (Discussion) - Cross-curricular Day 3: Yumi Makes a Korean Dictionary (Story) Day 4: Thank You, King Sejong! (Story) Day 5: Review / Break Time Unit 2 - Social Studies and Ethics Day 6: The Map Museum Website (Q&A) Day 7: A Letter to a Friend (Letter) Day 8: What Public Institutions Do (News Report) - Cross-curricular Day 9: A Visit to the Unification Observatory (Travel Essay) Day 10: Review / Break Time Unit 3 - Science and Math Day 11: Grandpa Trilobite (Story) - Cross-curricular Day 12: Growing Kidney Beans (Instructions) Day 13: The Best Scale Is Me! (Story) Day 14: Learning About Angles (Explanatory Text) Day 15: Review / Break Time Unit 4 - Arts and Physical Education Day 16: Introducing Panbonche Calligraphy (Explanatory Text) Day 17: A Letter to My Sister (Letter) Day 18: Peter and the Wolf (Instructions) Day 19: Watching a Soccer Match (Diary Entry) - Cross-curricular Day 20: Review / Break Time