We had caning. My fourth grade teacher used a 6-foot bamboo (this was in the Philippines) so as to do three boys at a time. Into efficiency she was.
We also had pinching and slapping with rulers.
It worked for us. I support it.
There aren't too many alternatives that are this effective in that regard. Even isolation isn't as effective.
That's awful. I support caning for criminals like in Singapore. But really- caning is beating. You don't want to beat children. Can't you just spank them?!!! Or even with a ruler slap them. Caning children is just cruel!