4-bang jeonhwanbeop
In this lesson you learn the four direction circle steps. The number 4 is pronounced as sa in Korean. You are supposed to say: sa-bang jeon-hwan-beop (사방전환법).
If you do want to know the four directions, draw an imaginary compass on the floor. Start in the south, you go north first, then east, west and return to the south.
Or if an imaginary clock works better for you: start at 6 o’clock, go to 12, then 3, then 9 and return to 6.