Try the Technology Curriculum published by Structured Pre k curriculum or two toolkits of mixed lessons. They can also be purchased as one of forty-three themed lesson bundles. If there is no link, it means it is not available for free. Our school nonfiction selection, although significantly improved this past year, is still wimpy. I get most of these books from the Seattle Public Library. Our school district does a trees unit in Kindergarten, a plant unit in 3rd grade, and an ecosystem world war 2 books
in 4th grade, so curricculum of these books would work in all three of these units (HINT HINT, NEW WILDWOOD LIBRARIAN, PLEASE BUY THEM.