Teachings that include lessons on selfishness, lying, bullying and other everyday life circumstances they have to deal with as children. Incorporating poetry into lessons is a catchy thing for children; letting them compose verses is a teaching element. Using biblical characters and lessons biblical children have learned as an example can be made an interesting story.
Well, one of them is the creating of earth. An other is the Ten Commandments, it is something very important to learn about being a Christian. It's the law of God.
You could teach them about good character traits (honesty, loyalty, bravery, etc. ) by using stories from the Bible. For example, use David as an example of youthful courage.
Children love Noah's Ark and David and Goliath. Many parables of Jesus are great with children, including the Good Samaratin, the Prodigal Son, the Pearl of Great Price, etc.
