Here is an intro PPT and Musical Wave Game for the Aha! World lesson on page 27 of the textbook. The intro includes a quick review of lessons 1 and 2, then introduces the greetings for various countries. The Musical Wave Game is played like the Pass The Ball Game, but it's adjusted for COVID-19. Instead of passing a ball, each student in turn raises both hands in the air and says "Man Sae! (만세!)". Starting with the student at the front of row 1, students make a wave to the back of row 1. The wave continues from the front of row 2 to the back etc. till all rows have done a wave. When the teacher randomly stops the music, that student says the greeting form the indicated country. My students enjoyed it!
