Un día de trabajo de un biólogo molecular (A Day at Work with a Molecular Biologist)

¿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.

This selection of riddles is just right: not too hard, not too easy, and all "dressed up" with beautiful illustrations.

Life in the Southern Hemisphere is bitterly cold for most penguins, but they don't seem to mind. Most penguins live in large colonies on the coast of Antarctica or on nearby islands. Readers explore penguin colonies for themselves, learning fun facts about these beautiful birds with the help of accessible text. Readers learn how penguin families work together to feed their young and keep them warm. A helpful graphic organizer aids in reader understanding. Readers will enjoy detailed images of penguin species at home in the Antarctic with every turn of the page.

Suitable for training advanced level students in writing texts in different styles and registers in Spanish