To inspire students during athletic day competition, the teacher drew some encouraging chalkboard art.
In Japan, a school’s athletic day is a big deal, with students divided up into different colour-coordinated teams.
If you are interested in how Naohiko did the chalkboard art, here is the underdrawing for the My Hero Academia art.
As GameOver points out, here is some of the encouraging chalkboard art, with positive messages telling students to win the whole festival and triumph over the blue and red team rivals.