It is already winter and you and the class 1-A were out in the snow

Bakugo chasing Deku around the snowy trees for no reason-

Momo and the other girls were building snowmen

Mineta drooling over the girls

Sero noticed Mineta being a perv and used his quirk and taped his eyes closed

Iida trying to calm the class down

Aizawa your homeroom teacher peacefully drinking his hot chocolate while watching the class in the snow while the students are being chaotic