Possible Duplicate:
How to operate a successful “Star Chart”?
Our nanny came up with an idea today to create a sort of table for our daughter, where they would draw a sun or smiley when my daughter behaves well and a sad face otherwise. Then we (the parents) would discuss the table with our daughter, offer her some sort of reward when there are many smileys, and explain that we are upset when there are many sad faces.
Does it make sense? Are there any risks with this kind of approach?