This excerpt describes how oceans work: the relationship between the phases of the moon and tides, and the dangers of deadly tidal waves called tsunamis. The author explains clearly, with the help of photographs, charts and illustrations, how and why waves form on a beach. (Houghton Mifflin Harcourt StoryTown, 2008)

This lesson was created as part of the Basal Alignment Project, during which teachers created CCSS-aligned lessons for existing literary and information texts in basal readers. All page numbers and unit/week designations found in this lesson relate to the edition of the basal reader named above. If you are using a trade book or different edition of this title, the page/unit/week references in this lesson will not match. Consult the content referenced in the body of the lesson to determine appropriate page numbers for your text.