Using the new C3 Framework for Social Studies Standards, these books explore environmentalism through the lenses of History, Geography, Civics, and Economics. In Land Trusts and National Parks, the text and photos look at the history, basic philosophies, and geography of this environmental issue. As they read, students will develop questions about the text, and use evidence from a variety of sources in order to form conclusions. Data-focused backmatter is included, as well as a bibliography, glossary, and index.