This topic has two important articles for your consideration:
Evaluating Sunday School and Testing What Our Kids Know
WHAT Our Kids Should Know About the Bible and WHEN Should They Know It?
Related Link: Lessons that move from Information to Transformation
These two articles were originally posted by Neil MacQueen at his Sundaysoftware ministry's website and were copied here with permission. They have both been updated on several occasions. Neil is a Presbyterian minister specializing in Christian education and one of the founders of the Rotation Model and this website.
As always, you're welcome to reply, share, or quote the articles.