Written by math educator Cynthia Lanius and hosted by Rice University, these lessons offer games, activities, and practice on a number of math concepts for students in grades K-4, 5-8, and 9-12. Topics range from counting to calculus, from fractions to graphing. Some lessons are in Spanish as well as English, and larger sections contain a page of notes for teachers. One of my favorites it the Million Dollar Mission. From there, you can check out what $10 million in pennies would look like. Does anyone have a piggy bank big enough for that?
This content-rich site and Library of Congress “Featured Presentation” looks at the immigration experiences of Americans from many backgrounds and countries. The site includes lesson suggestions and resources, online immigration vocabulary games (including one on the origin of English words), interviews, and a collection of recipes from around the world. You can also use the navigation at left to learn more about a particular immigrant group.