Células (Cells)

How do you truly engage students in learning history? When students make personal connections to the subject, they’re much more motivated to learn. This Spanish book provides firsthand accounts of history that give personal insights into historical events. Students will learn about the U.S. Constitution, the Articles of Confederation, the Connecticut Compromise, and the Bill of Rights. With a visually appealing layout, this book features captivating text, fun facts, sidebars, and time lines that help students grasp the essential concepts they need to know at their grade level. Packed with...

Los lectores j©Øovenes encuentran hechos interesantes sobre Saturno el planeta anillado. Descubra de qu©Øe est©Øa hecho o cu©Øantas lunas tiene.

Toda conducta se produce siempre en función de un contexto y una actitud concretas. La actitud es el factor afectivo-emocional que modula la conducta y la transforma en la singular actuación de cada uno de nosotros ante una situación determinada. La conducta y la actitud, sumada a las actuaciones, hacen aflorar un rasgo fundamental del sujeto: su esencial inestabilidad, el hecho de estar en un proceso constante de construcción y deconstrucción con el que se adapta a cada contexto. Esta oscilación entre la versatilidad de la conducta humana y la necesidad de conquistarse una identidad...

Explains the basic science of flight, the problems of getting vehicles into the air, different types of engines, and aircraft design, and includes instructions for making aircraft models.

It is the third Monday in January and school is closed. But do you know why? It's Martin Luther King Jr. Day. Turn the pages of this book to find out what dream Dr. King shared with the world, who Mohandas Gandhi was, how one brave woman helped Martin Luther King Jr. change history. Each book in the Holiday Histories series describes one of America's holidays or special days. Explore the history of each day and learn the real reason why it is important. Discover what special meaning each day might have for you.