Chapter 1. Music
Unit 1. Seodong's Song
Unit 2. Copyright
Unit 3. Painting Music
Unit 4. Math in Harmony
Chapter 2. Architecture
Unit 1. I Want to Be an Architect
Unit 2. Hwaseong Fortress
Unit 3. Gaudi's Unique Architecture
Unit 4. Different Types of Pyramids
Chapter 3. Ice
Unit 1. Water and Ice
Unit 2. The Arctic and the Antarctic
Unit 3. Winter Festivals
Unit 4. Which Piece of Ice Is Bigger?