365 enigmas y juegos de lógica

This Rookie Espanol: Geografia book introduces young readers to the idea of using maps. The book begins with a look at road maps, city maps, and world maps. Young readers learn that numbered lines represent roads and colored shapes represent land and water. The focus is then on a map of the United States, followed by a look at how some maps show elevation, others feature rainfall, and still others include drawings that tell about the people, animals, and resources of a particular place.

Simple text and photographs introduce the concept of symmetry as displayed by familiar creatures and objects.

¿Sabías que James Madison ayudó a escribir la Constitución de Estados Unidos de América? Fue también el cuarto presidente de los Estados Unidos. Podrás encontrar estos y muchos otros datos interesantes en James Madison, uno de los libros de Padres Fundadores. Did you know that James Madison helped write the U.S. Constitution? He was also the fourth president of the United States. These interesting facts and more can be found in James Madison, a Founding Fathers book.

Defines levers, explains their functions, and suggests simple experiments to demonstrate how they work.