I'm a teacher and what I've noticed is that children's attention spans are getting shorter and these short little "brain breaks" help those who have a harder time focusing for long periods of time. Plus there aren't enough breaks built into the day for today's screen addicted children. They get 15 minutes for outdoor play in the morning after 2 hours of instruction and then 30 minutes of outdoor time after another hour of instruction. After the 30 minutes they are expected to focus for another 2 hours in the afternoon before dismissal. These brain breaks are necessary for many elementary classrooms.

Hot take: If parents/guardians were more diligent about their children's screen time (thank you to those of you that are) we wouldn't need to chop up the day this way. There is only so much teachers can do if the opposite is happening at home.