Common Core dictates that we add more nonfiction to the curriculum. Here is a nonfiction "book" on Caterpillars and Butterflies. It explores metamorphosis, camouflage and diet as well as telling the difference between butterflies and moths. I use M-Th. Monday, we do a picture walk and I read the book to the students. Tuesday, we do echo reading. Wednesday, we read together. Thursday, the students take turns reading. Friday, I have them write a report for both a writing grade and a science grade. Excellent for science content as well.