Wow, what? Our kids have no devices (except computer lab time), no candy rewards, no homework. Not even reading assignments. Lunch was a bit of an issue as some kids wouldn't finish theirs, or the TV would be on so they'd be distracted.
But outdoor and free thinking time was at a maximum. Between recess and lunch, rain or shine, kids would be outside playing in the forest, digging up bugs and playing chase games. After lunch kids could pick "centres" to go play kitchen, painting, blocks, whatever. My daughter usually chose drawing and brought me home a card every day.
Class size between 18-22 kids. One autistic kid with an EA. Bullying at a minimum despite being in a questionable neighbourhood.