I've used this idea that a story should be written like a roller coaster for a few years. This graphic organizer can help students map out their narrative stories and can help them think about the elements that should be included in a story.
This house has really helped me teach main idea to my 4th grade students. The top of the house is the topic. The middle of the house is the main idea. And the base of the house that holds everything up is the supporting details. This analogy stuck