En el trabajo: Contratistas: Perímetro y área (On the Job: Contractors: Perimeter and Area)

For young people, it can be easy to confuse what one wants as opposed to what one actually needs. This thoughtful resource elucidates the basic concepts of wants and needs and how they fit into the economic landscape. Readers will be asked to consider the different priorities of cultures from around the world, offering a more global overview, as well as a perspective on what people needed in the past. The text nudges the idea of needs further with a discussion of emotional needs and what those might be.

En el Pacífico Sur, en 1944 y 1945, se libraron batallas militares entre Estados Unidos y Japón. Rodeados del traqueteo de las balas y las explosiones de las bombas, un grupo de marines navajos enviaba mensajes secretos de un lado a otro. Usaron un código que crearon a partir del idioma navajo, y que el enemigo nunca pudo descifrar. Estos jóvenes fueron reclutados de sus hogares en el suroeste de Estados Unidos. Trajeron consigo una resistencia física increíble y un lenguaje que nunca había sido escrito. Aprende sobre los locutores de claves navajos: héroes valientes y creativos que...

Explores snakes and describes how they move, hunt, eat and mate. Includes fact boxes with information about snake life.

Describes the Boston Tea Party, including the events leading up to the party, its immediate effects on American-British relations, and why it is still an important event today.