Cute little Clifford the Big Red Dog book. It is spring time and Clifford and the family decide to clean their house. The book also discusses things people in their neighborhood are doing for Earth Day. At the end of the book there is a page that tells you what day Earth Day is on and things you can do to participate for Earth Day. You could use this in your classroom to read on Earth Day (April 22) and actually do an activity to participate in Earth Day and talk about why this day is important and come up with different way to help keep the planet clean. I think this book would be best to use in K-1.