Over the course of this school year, for this column, we have brainstormed unit possibilities for science, math, and social studies at the primary, intermediate, and high school levels. Our purpose was to show how nonfiction literature supports inquiry and integration across the curriculum, while at the same time meeting Common Core and content-area standards. It was hard, but satisfying, work. It’s now time to reflect on that experience. Here are our top 10 takeaways.