I'm not even sure if this is in the right place D:
Basically, I'm asking on behalf of my sister, who is a primary school teacher. I saw something in another thread about an alternative/complement to the house points system, which is a Kindness Jar: acts of kindness get a token to put in the jar, the class works together to fill the jar, a full jar nets a reward for the entire class.
She (and I) were wondering if there are any teachers on here who have implemented other neat schemes like this one or who have any other classroom tips and tricks she may not have heard of/come across.