Primeros Ejercicios de Calculo

Most young astronomers know that Earth is located in the Milky Way galaxy, but they might not know what that means or what lies beyond. Understanding our galaxy and others will help them comprehend more about how the universe works. Your readers will discover many amazing and memorable facts about galaxies, including their differing shapes, numbers of stars, and constant movement. They'll especially love the mind-boggling images of the depths of space.

"Introduccion de Jorge Rodriguez Padron. Su poesia arranca como un grito de emancipacion femenina e individual, con raices en el romanticismo y el modernismo, y recorre un itinerario que irrumpe en el espacio poetico de la modernidad."

In this book, children learn how we can tell if something is shiny or dull and which materials have these properties.

Celebrating the life, growth, and development of baby animals, Starting Out narrates the tale of growing up in the wild. This series--now in Spanish as well as English--employs simple language and a unique first-person perspective to introduce foundational biological concepts as it follows the adorable animal through the start of its young life. The straightforward text and large photos of the animal in its natural environment will both entertain and enlighten as readers learn how the animal's physical features, diet, habitat, and familial relationships play a role in its growth and...