The second volume of the Core Knowledge History of the United States ebook begins by asking young scholars to consider the impact immigration, industrialization, and urbanization had on the United States in the late 1800s. The text ends...

Does the space shuttle have an odometer? Maybe, but all that is needed to determine the distance to the moon is a little geometry! The lesson asks scholars to sketch the relationship of the Earth and moon using shadows of an eclipse....

Access your senses with a worksheet on sensory language. Based on Owl Moon by Jane Yolen, the worksheet prompts kids to find examples of each of the five senses, as well as phrases for inner emotion.