I assisted for the first time at an “undōkai”, which is a sports day of a japanese school.  These were all junior high school students. Nakamura-san and I arrived just at time for the relay race and the” kumi-taiso” (group stretches including human pyramids and all kinds of gymnastic figures! I really enjoyed  watching and cheering them up because it really demonstrated team work, and the necessity to have a good communication between one and another.